| Nom | Prénom | sexe | lieu de naissance | date de 0 | pays | arrivé le | Commune |
| OBBADONE | Jacques | M | Val della torre (TO - Piemont) | 1857/04/02 | I | 1895/11/26 | Morez-39 |
| OBERDORF | Jakob | M | Zillisheim (Haut-Rhin - France) | 1876/02/18 | A-L | 1900/05/12 | Saint-Vit-25 |
| OBERHOLZER | Emile | M | Wald (3 communes) | 1906/08/29 | CH | 1926/12/20 | Ornans-25 |
| OBERLY | Paul Ulysse | M | Locle (Le) (canton de Neuchâtel) | 1886/10/20 | CH | 1916/09/07 | Morteau-25 |
| OBERSON | Alphonse | M | Pont-la-Ville (canton de Fribourg) | 1887/12/26 | CH | 1914/03/04 | Frasne-25 |
| OBERSON | François | M | Farvagny (canton de Fribourg) | 1876/07/05 | CH | Moutonne-39 | |
| OBERTI | Antoine | M | Piazza-Bembrana (BG - Lombardie) | 1857/00/00 | I | 1897/03/06 | Frasnois (Le)-39 |
| OBERTI | Jean | M | Piazza-Bembrana (BG - Lombardie) | 1830/00/00 | I | 1897/04/10 | Frasnois (Le)-39 |
| OBERTI | Baptiste | M | Piazza-Bembrana (BG - Lombardie) | 1850/12/18 | I | 1910/03/19 | Ornans -25 |
| OBERTINO | Dionis Secondino Séverin | M | Sparone (TO - Piemont) | 1893/12/21 | I | Labergement-Sainte-Marie-25 | |
| OBERTINO | Emile Joseph | M | Labergement Ste-Marie (Doubs - France) | 1924/03/17 | I | Labergement-Sainte-Marie-25 | |
| OBERTINO | Enfant sans vie | Labergement Ste-Marie (Doubs - France) | 1923/02/16 | I | Labergement-Sainte-Marie-25 | ||
| OBERTINO | Enfant sans vie | Labergement Ste-Marie (Doubs - France) | 1921/09/19 | I | Labergement-Sainte-Marie-25 | ||
| OBERTINO | Georgette Ginette Gilberte | F | Labergement Ste-Marie (Doubs - France) | 1928/12/01 | I | Labergement-Sainte-Marie-25 | |
| OBERTINO | Gilbert Raymond | M | Labergement Ste-Marie (Doubs - France) | 1928/01/26 | I | Labergement-Sainte-Marie-25 | |
| OBERTINO | Jean Louis | M | Sparone (TO - Piemont) | 1898/08/25 | I | Labergement-Sainte-Marie-25 | |
| OBERTINO | Marcelle Irène | F | Labergement Ste-Marie (Doubs - France) | 1929/05/14 | I | Labergement-Sainte-Marie-25 | |
| OBERTINO | Raymond | M | Labergement Ste-Marie (Doubs - France) | 1925/07/07 | I | Labergement-Sainte-Marie-25 | |
| OBERTINO | Simone | F | Labergement Ste-Marie (Doubs - France) | 1925/06/17 | I | Labergement-Sainte-Marie-25 | |
| OBERTO | François | M | Rivarolo Canavese (TO - Piemont) | 1858/00/00 | I | 1899/06/30 | Morez-39 |
| OBERTO | Michel | M | Rivarossa (TO - Piemont) | 1854/02/05 | I | 1898/03/20 | Morez-39 |
| OBERTO | Giovanni | M | Cornier (Haute-Savoie) ? | 1893/05/16 | I | 1921/09/23 | Planches-en-Montagne (Les)-39 |
| OBI | Fritz | M | Oberbipp (BE) | 1897/10/28 | CH | 1919/05/31 | Mouthe-25 |
| OBI | Fritz | M | Oberbipp (BE) | 1897/10/28 | CH | 1922/06/02 | Mouthe-25 |
| OCHSNER | Otto Arnould | M | Brassus (Le) (canton de Vaud) | 1884/07/24 | CH | 1896/05/18 | Planches-en-Montagne (Les)-39 |
| OCHSNER | Hermann Emmanuel | M | Brassus (Le) (canton de Vaud) | 1886/09/09 | CH | 1896/05/18 | Planches-en-Montagne (Les)-39 |
| OCHSNER | Otto Arnould | M | Brassus (Le) (canton de Vaud) | 1884/07/24 | CH | 1897/05/04 | Planches-en-Montagne (Les)-39 |
| OCHSNER | Hermann Emmanuel | M | Brassus (Le) (canton de Vaud) | 1886/09/09 | CH | 1897/05/04 | Planches-en-Montagne (Les)-39 |
| OCKER | Eugène | M | Ribeauvillé (Haut-Rhin - France) | 1868/06/24 | D | Morteau-25 | |
| OCLEPO | Patrino | M | Pavone Canavese (TO - Piémont) | 1871/03/22 | I | 1897/03/16 | Charchilla-39 |
| ODIN | Zotique | M | Montagny-les-Monts (FR) | 1888/03/25 | CH | 1908/03/30 | Morez-39 |
| ODIN | Pierre Athanase | M | Montagny-les-Monts (FR) | 1896/06/06 | CH | 1910/06/00 | Morez-39 |
| ODIN | Gaspard | M | Neyruz (canton de Fribourg) | 1851/02/06 | CH | 1901/03/04 | Pont-du-Navoy-39 |
| ODIN | Athanase | M | Montagny-les-Monts (FR) | 1895/06/06 | CH | 1911/03/15 | Tancua-39 |
| ODORICE | Carlo | M | Modene (MO - Emilie-Romagne) | 1870/11/24 | I | 1901/05/18 | Brevans-39 |
| ODORICI | Domenico | M | Guiglia (MO - Emilie-Romagne) | 1891/04/26 | I | 1913/02/04 | Frasne-25 |
| ODORIZZI | Antonio | M | Bollone (BS - Lombardie) | 1866/00/00 | A | 1902/03/27 | Chaux-du-Dombief (La)-39 |
| OERTLE | Jakob | M | Roggwil (2 communes) | 26/09/1901 | CH | 1920/04/15 | Arc-sous-Cicon-25 |
| OESCH | Albert Louis | M | Oberlangenegg (canton de Berne) | 1873/06/13 | CH | 1903/02/15 | Morteau-25 |
| OESCH | Frédéric | M | Thoune (canton de Berne) | 1870/07/20 | CH | 1904/07/25 | Morteau-25 |
| OESCHLIN | François Louis | M | Schaffhouse (canton de Schaffhouse) | 1845/06/22 | CH | 1895/04/25 | Morez-39 |
| OFFENER | Pierre | M | Planfayon (canton de Fribourg) | 17/02/1912 | CH | Morez-39 | |
| OFFENHAUSER | Ernest Isaac | M | Sarraz (La) (canton de Vaud) | 1867/00/00 | CH | 1897/06/03 | Septmoncel-39 |
| OFFMANN | Jean | M | Schwenheim (Bas-Rhin - France) | 1885/00/00 | Al | 1912/06/29 | Rosay-39 |
| OFFREDI | Valentino Ignazio | M | Brumano (BG - Lombardie) | 1909/01/31 | I | 1928/08/20 | Damparis-39 |
| OFFREDI | Pietro | M | Gerosa ( BG - Lombardie) | 1897/12/27 | I | 1928/09/11 | Morez-39 |
| OFFREDI | Pietro | M | Gerosa (BG - Lombardie) | 1897/12/27 | I | 1925/05/10 | Morez-39 |
| OFFREDI | Pietro | M | Gerosa (BG - Lombardie) | 1897/12/27 | I | 1925/05/10 | Morez-39 |
| OFFREDI | François Baptiste | M | Berbenno (BG - Lombardie) | 1854/00/00 | I | 1895/05/05 | Pesse (La)-39 |
| OFFREDI | Giacomo | M | Taleggio (BG - Lombardie) | 1894/09/18 | I | 1909/05/04 | Prémanon-39 |
| OFFREDI | Giuseppe | M | Taleggio (BG - Lombardie) | 1893/12/26 | I | 1911/04/17 | Prémanon-39 |
| OFFREDI | Pietro | M | Gerosa (BG - Lombardie) | 1897/12/27 | I | 1928/00/00 | Prémanon-39 |
| OFFREDI | Charles | M | Peghera di Taleggio (BG - Lombardie) | 1912/09/18 | I | 1922/00/00 | Saint-Germain-en-Montagne-39 |
| OFFREDI | Battista | M | Berbenno (BG - Lombardie) | 1872/12/12 | I | 1901/04/24 | Septmoncel-39 |
| OFFREDI | Catherine | M | I | Prémanon-39 | |||
| OFRANDI | Fermo | M | Fino del Monte (BG - Lombardie) | 1870/05/26 | I | 1892/00/00 | Thoirette-39 |
| OGGERI | Giacomo | M | Rueglio (TO - Piemont) | 1862/08/08 | I | 1905/05/21 | Lac-des-Rouges-Truites-39 |
| OGGIANI | Jean Baptiste | M | Seppiana (NO - Piemont) | 1863/00/00 | I | Ornans-25 | |
| OGLIARI | Eugène | M | Trescore Balneario (BG - Lombardie) | 1876/12/30 | I | 1903/10/01 | Morteau-25 |
| OGLIARO | Marius | M | Ceretto Castello (VC - Piemont) | 1883/11/20 | I | 1902/04/01 | Morez-39 |
| OGLIARO | Marius | M | Cerreto Castello (VC - Piemont) | 1883/11/20 | I | 1910/04/22 | Morez-39 |
| OGLIOTTI | Secondo | M | Masserano (VC - Piemont) | 1849/01/19 | I | 1872/00/00 | Arsure-Arsurette-39 |
| OHL | Anna Alphonsine | F | Strasbourg (Bas-Rhin) | 1841/08/08 | D | 1888/11/26 | Ornans-25 |
| OLANDINI | Pio | M | Corniglio (PR - Emilie-Romagne) | 1895/08/27 | I | 1912/03/11 | Les Longevilles-Mont-D'Or-25 |
| OLBRYCK | Stanislas | M | Krusplus | 1878/09/05 | PL | 1927/07/02 | Ivory-39 |
| OLDANI | Giuseppe | M | Santo Stefano Ticino (MI - Lombardie) | 1886/06/07 | I | 1914/02/14 | Frasne-25 |
| OLDANI | Henrico | M | Casorezzo (MI - Lombardie) | 0000/05/15 | I | 1912/08/02 | Les Longevilles-Mont-D'Or-25 |
| OLEGGINI | Alfred | M | Veruno (NO - Piemont) | 1902/10/22 | I | 1924/04/01 | Fougerolles-70 |
| OLEGGINI | Antonio | M | Agrate Conturbia (NO - Piemont) | 1892/12/10 | I | 1911/04/25 | Morez-39 |
| OLINGER | Marie | F | Mondorff-les-Bains | 1847/04/03 | L | Ornans-25 | |
| OLIOTY | François | M | Masserano (BI - Piemont) | 1847/10/14 | I | 1889/03/25 | Mouthe-25 |
| OLIOTY | François | M | Masserano (BI - Piemont) | 1847/10/14 | I | 1896/03/22 | Mouthe-25 |
| OLIS | Willard | M | Poplarridge(?) (USA) | 1894/06/27 | USA | 1918/03/24 | Ornans-25 |
| OLIVA | Felice | M | Les Longevilles-Mont-D'Or-25 | ||||
| OLIVA | Félix | M | Giaveno (TO - Piemont) | 1860/00/00 | I | 1897/05/02 | Morez-39 |
| OLIVA | Sévérino | M | Coazze (TO - Piemont) | 1899/10/15 | I | 1923/04/06 | Planches-en-Montagne (Les)-39 |
| OLIVA | Carlo | M | Mergozzo (NO - Piemont) | 1900/10/17 | I | 1924/01/15 | Vaux-les-Saint-Claude-39 |
| OLIVA fe SORAVIA | Angela | F | Valle di Cadore (BL - Vénétie) | 1877/08/23 | I | 1925/09/24 | Cernon-39 |
| OLIVARES | Angelo | M | Vittuone (MI - Lombardie) | 1894/09/25 | I | 1913/03/06 | Mouchard-39 |
| OLIVARI | Adelmo | M | Guiglia (MO - Emilie-Romagne) | 1892/04/02 | I | 1914/04/19 | Frasne-25 |
| OLIVARI | Vito | M | Zocca (MO - Emilie-Romagne) | 1883/06/15 | I | 1914/04/19 | Frasne-25 |
| OLIVER | Jacques | M | Soller | 1876/00/00 | E | 1900/10/15 | Morez-39 |
| OLIVER | François | M | Morez (Jura - France) | 29/11/1905 | E | 1923/06/01 | Morteau-25 |
| OLIVER | François | M | Morez (Jura - France) | 29/11/1905 | E | 1923/06/11 | Morteau-25 |
| OLIVERO | Pietro | M | Turin (TO - Piemont) | 1896/05/10 | I | 1914/05/24 | Frasne-25 |
| OLIVERO | Antonio | M | Mazzè (TO - Piemont) | 1887/08/22 | I | 1905/04/11 | Lac-des-Rouges-Truites-39 |
| OLIVERO | Oreste | M | Condove (TO - Piemont) | 1870/00/00 | I | 1898/12/25 | Morez-39 |
| OLIVERO | André | M | Marseille (Bouches-du-Rhône - France) | 1860/11/11 | I | 1903/06/06 | Prémanon-39 |
| OLIVERO | Carlo Andréa | M | Mazze (TO - Piemont) | 1879/10/08 | I | 1905/03/28 | Foncine-le-Bas-39 |
| OLIVERO | Ernesto | M | Sommariva del Bosco (CN - Piemont) | 1886/07/24 | I | 1913/04/13 | Mouchard-39 |
| OLIVETTI | Pietro | M | Traves (TO - Piemont) | 1888/09/21 | I | 1912/05/05 | Les Longevilles-Mont-D'Or-25 |
| OLIVETTI | Edouard | M | Traves (TO - Piemont) | 1899/10/19 | I | 1922/05/00 | Ravilloles-39 |
| OLIVI | Agostino | M | Urbania (PU - Marches) | 1895/04/03 | I | 1913/12/02 | Frasne-25 |
| OLIVIER | Samuel | M | Eysins (canton de Vaud) | 1868/12/17 | CH | 1906/07/15 | Prémanon-39 |
| OLLIGINI | Edouard | M | Agrate Conturbia (NO - Piemont) | 1863/06/14 | I | 1901/07/11 | Fougerolles-70 |
| OMENETTO | Tranquillo | M | Albettone (VI - Vénétie) | 1906/05/05 | I | 1930/12/13 | Vernantois-39 |
| OMER | Jean | M | Interlaken (BE) | 1841/08/15 | CH | 1907/04/00 | Mouthe-25 |
| OMICINI | Giacomo | M | Tione di Trento (TN - Trentin Haut-Adige) | 1859/00/00 | A | 1902/04/06 | Lent-39 |
| OMICIOLI | François | M | Urbino (PU - Marches) | 1847/09/11 | I | 1912/04/28 | Les Longevilles-Mont-D'Or-25 |
| OMMICIOLI | Ridolfo | M | Urbino (PU - Marches) | 1887/05/28 | I | 1912/04/29 | Les Longevilles-Mont-D'Or-25 |
| ONESTI | Edmond | M | Bussoleno (TO - Piemont) | 1907/01/12 | I | Saint-Claude-39 | |
| ONGANIA | Alfred | M | Buenos-Aires (Argentine) | 1892/10/24 | I | 1924/02/14 | Fougerolles-70 |
| ONGANIA | Angelo | M | Perledo (CO - Lombardie) | 1887/02/22 | I | 1912/03/07 | Fougerolles-70 |
| ONGARO | Ange Louis Baptiste | M | Gandino (BG - Lombardie) | 1850/00/00 | I | Pontarlier-25 | |
| OPPENHEIM | Louise Jeanne | F | New-York | 1883/05/14 | USA | Ornans-25 | |
| OPPICI | Joseph | M | Parme (PR - Emilie-Romagne) | 1894/09/25 | I | 1913/06/25 | Les Longevilles-Mont-D'Or-25 |
| OPPLIGER | Irma | F | Renan (canton de Berne) | 1897/12/10 | CH | 1923/10/25 | Morteau-25 |
| OPTALE | Torquato | M | Agostini (inconnu) | 1885/10/24 | I | 1911/10/03 | Les Longevilles-Mont-D'Or-25 |
| ORCINGHER | Angelo | M | Canale D'Agordo (BL - Vénétie) | 1857/05/27 | A | Morbier-39 | |
| OREGIA | Pierre | M | Pila (NO - Piemont) | 1851/04/11 | I | 1889/03/03 | Mont-sous-Vaudrey-39 |
| ORGEAT | Jean | M | Turin (TO - Piemont) | 1891/10/18 | I | 1912/02/17 | Frasne-25 |
| ORGEAT | Jean | M | Trana (TO - Piemont) | 1836/06/00 | I | Morbier-39 | |
| ORGEAT | Louis | M | Cumiana (TO - Piemont) | 1881/10/23 | I | 1910/10/25 | Tancua-39 |
| ORGIAZZI | Jacques | M | Cravagliana (VC - Piémont) | 1851/11/20 | I | 1895/03/20 | Conliège-39 |
| ORGIAZZI | Jacques | M | Cravagliana (VC - Piémont) | 1851/11/20 | I | 1896/03/01 | Conliège-39 |
| ORGIAZZI | Jacques | M | Cravagliana (VC - Piémont) | 1851/11/20 | I | 1897/03/09 | Conliège-39 |
| ORGIAZZI | Giosué | M | Cravagliana (VC - Piémont) | 1867/00/00 | I | 1898/03/10 | Conliège-39 |
| ORGIAZZI | Michel | M | Cravagliana (VC - Piémont) | 11/09/1901 | I | 1925/04/01 | Conliège-39 |
| ORGIAZZI | Henri | M | Cravagliana (VC - Piemont) | 1893/06/24 | I | 1920/00/00 | Cousance-39 |
| ORGIAZZI | Michele | M | Cravagliana (VC - Piemont) | 1901/09/11 | I | 1925/04/01 | Lons-le-Saunier-39 |
| ORIGLIASSO | Dominico | M | Coassolo Torinese (TO - Piémont) | 1831/02/12 | I | 1897/07/01 | Charchilla-39 |
| ORLANDI | Gaétano | M | Vergato (BO - Emilie-Romagne) | 1876/09/30 | I | Andelot-en-Montagne-39 | |
| ORLANDI | Gaétano | M | Vergato (BO - Emilie-Romagne) | 1876/09/30 | I | Andelot-en-Montagne-39 | |
| ORLANDI | Gaétano | M | Vergato (BO - Emilie-Romagne) | 1876/09/30 | I | Andelot-en-Montagne-39 | |
| ORLANDI | Pietro | M | Palanzano (PR - Emilie-Romagne) | 1885/07/19 | I | 1912/10/09 | Frasne-25 |
| ORLANDI | Angelo | M | Fanano (MO - Emilie-Romagne) | 1873/05/16 | I | 1897/04/06 | Morez-39 |
| ORLANDI | Angèle | M | Fanano (MO - Emilie-Romagne) | 1874/00/00 | I | 1898/10/05 | Morez-39 |
| ORLANDI | Fulgence | M | Villa Argine (inconnu) | 1857/00/00 | I | 1899/03/07 | Morez-39 |
| ORLANDI | Giacomo | M | Novare (NO - Piemont) | 1881/00/00 | I | 1900/04/20 | Septmoncel-39 |
| ORLANDINI | Paridi | M | Vigatto (PR - Emilie-Romagne) | 1891/11/09 | I | 1912/10/09 | Frasne-25 |
| ORLANDINI | Elviro | M | Corniglio (PR - Emilie-Romagne) | 1890/06/04 | I | 1912/05/27 | Les Longevilles-Mont-D'Or-25 |
| ORLANDINI | Santinio | M | Corniglio (PR - Emilie-Romagne) | 1885/12/12 | I | 1911/12/07 | Les Longevilles-Mont-D'Or-25 |
| ORLANDINI | Remizio | M | Corniglio (PR - Emilie-Romagne) | 1887/03/08 | I | 1912/05/29 | Les Longevilles-Mont-D'Or-25 |
| ORLANDINI | Angelo | M | Pelago (FI - Toscane) | 1880/10/29 | I | 1912/02/14 | Les Longevilles-Mont-D'Or-25 |
| ORLANDINI | Elvire Marie | F | Corniglio (PR - Emilie-Romagne) | 1890/06/04 | I | Longevilles-Mont-D'Or (Les) 25 | |
| ORLANDINI | Fulgence | M | Villa d'Adige (RO - Vénétie) | 1857/00/00 | I | 1897/06/04 | Morez-39 |
| ORLANDO | Léonard | M | Valstagna (VI - Vénétie) | 1876/12/14 | I | 1903/04/05 | Morez-39 |
| ORLANDO | Lazzaro | M | Cagliari (CA - Sardaigne) | 1884/11/19 | I | Ornans-25 | |
| ORLANDO | Jean | M | Ornans (Doubs - France) | 1927/07/30 | I | Ornans-25 | |
| ORLANDO | Léonard | M | Valstagna (VI - Vénétie) | 1876/00/00 | I | 1899/03/01 | Saint-Claude-39 |
| ORLANDO | Bartolo | M | Campolongo (3 communes) | 1896/06/18 | I | 1913/04/03 | Sirod-39 |
| ORLANDO | Juliette | F | Selargius (CA - Sardaigne) | 1914/01/07 | I | 1928/04/23 | Ornans-25 |
| ORRI | Battista | M | Nogoro (inconnu) | 1886/08/11 | I | 1913/05/13 | Les Longevilles-Mont-D'Or-25 |
| ORRU | Giuseppe | M | Jerzu (NU - Sardaigne) | 1889/11/11 | I | 1913/10/19 | Frasne-25 |
| ORSI | Giuseppe Giorgio | M | Tizzano Val Parma (PR - Emilie-Romagne) | 1901/06/04 | I | 1923/04/18 | Thoiria-39 |
| ORSI (d') | Louis | M | Tizzano val Parma (PR - Emilie-Romagne) | 1878/06/27 | I | 1905/10/13 | Foncine-le-Bas-39 |
| ORSINI | André | M | Tavoleto (PS - Marches) | 1892/09/20 | I | 1924/03/24 | Etoile (L')-39 |
| ORSO | Giacomo | M | Frassinetto (TO - Piemont) | 1890/06/07 | I | 1914/05/31 | Les Longevilles-Mont-D'Or-25 |
| ORSO | Louis | M | Salto (TO - Piemont) | 1875/11/29 | I | 1903/07/29 | Morteau-25 |
| ORSONI | Georges | M | Salto (TO - Piemont) | 1875/11/09 | I | 1913/09/05 | Frasne-25 |
| ORSUN | François | M | Finestrat (Province d'Alicante) | 1877/10/15 | E | 1909/02/14 | Ivrey-39 |
| ORTALDI | Jean François Jacques | M | Chivasso (TO - Piemont) | 1851/09/05 | I | 1879/04/21 | Dampierre-39 |
| ORTELLI | Ercole | M | Loveno di Menaggio (CO - Lombardie) | 1903/11/06 | I | 1926/03/26 | Brevans-39 |
| ORTELLI | Agostino | M | Pleno (inconnu) | 1902/03/19 | I | 1926/03/26 | Brevans-39 |
| ORTELLI | Agostino | M | Plesio (CO - Lombardie) | 1902/03/19 | I | 1929/01/01 | Brevans-39 |
| ORTELLI | Battista | M | Plesio (CO - Lombardie) | 1905/05/01 | I | 1925/03/00 | Brevans-39 |
| ORTELLI | Palmiro | M | Loveno sopra Menaggio (CO -Lombardie) | 1876/04/08 | I | 1899/03/09 | Fougerolles-70 |
| ORTIZ LLORCA | Tomas | M | Archeta (province d'Alicante) | 1880/07/13 | E | 1913/02/18 | Frasne-25 |
| ORTORE | Charles | M | Valprato (TO - Piemont) | 1895/09/26 | I | 1911/07/24 | Morteau-25 |
| ORTOVOSKI | Antonio | M | Jeredine Galicie | 1886/04/15 | A | 1926/04/19 | Frasne-25 |
| ORTUNO | Enrique | M | Finestrat | 1899/04/15 | E | 1927/05/15 | Mouthe-25 |
| ORTUNO LLINES | Miguel | M | Orchet (Province d'Alicante) | 1890/09/18 | E | 1909/02/14 | Ivrey-39 |
| ORUZA | Natale | M | Piasco (CN - Piémont) | 1874/09/08 | I | 1925/06/04 | Chassal-39 |
| ORVALE | Emile | M | Bierg | 1888/03/04 | E | Lons-le-Saunier-39 | |
| ORZI | Luigi | M | Bologne (BO - Emilie-Romagne) | 1883/10/14 | I | 1914/06/24 | Les Longevilles-Mont-D'Or-25 |
| OSKOLKOFF | Boris | M | Moscou | 1889/06/23 | RUS | 1913/12/04 | Morteau-25 |
| OSLER | Numa Arthur | M | Chaux de Fonds (La) (canton de Neuchatel) | 1891/01/05 | CH | 26/04/1913 | Morteau-25 |
| OSOLA | Gaspard | M | Rivarossa (TO - Piemont) | I | Morbier-39 | ||
| OSSEMOND | Pierre | M | Ornans (Doubs - France) | 1883/04/22 | I | Ornans-25 | |
| OSSEMOND | Fabiano Petronio | M | Turin (TO - Piemont) | 1847/00/00 | I | Ornans-25 | |
| OSSETTE | Marie Claude | F | Rougemont-le-Château (Territoire de Belfort - France) | 1882/10/28 | I | Frasne-25 | |
| OSSOLA | Charles Louis Antoine | M | San Carlo Canavese (TO - Piemont) | 1874/08/13 | I | Dole-39 | |
| OSSOLA | Attilio | M | Leggiuno (BG - Lombardie) | 1883/08/15 | I | 1897/03/08 | Saint-Vit-25 |
| OSSOLA | César | M | Introbio (CO - Lombardie) | 1907/10/16 | I | 1931/03/21 | Thoiria-39 |
| OST | Francisca | F | Ohlungen (Bas-Rhin) | 1878/03/06 | Al | 1903/09/01 | Fougerolles-70 |
| OSTERERO | Joseph | M | Giaveno (TO - Piemont) | 1874/00/00 | I | 1898/12/25 | Morez-39 |
| OSTERERO | Louis Félix | M | Giaveno (TO - Piemont) | 1882/00/00 | I | 1898/12/25 | Morez-39 |
| OSTI | Pierre | M | Ospedaletto | 1870/1/19 | A | 1902/07/26 | Morteau-25 |
| OSTI | Pierre | M | Ospedaletto | 1870/11/19 | A | 1903/06/13 | Morteau-25 |
| OSTI | Emmanuel | M | Ospedaletto | 1877/04/30 | A | 1903/06/17 | Morteau-25 |
| OSTI | Pierre | M | Ospedaletto | 1870/11/19 | A | 1905/08/10 | Morteau-25 |
| OSTINELLI | Giovanni | M | Milan (MI - Lombardie) | 1874/05/15 | I | Arbois-39 | |
| OSTORERE | Dominique | M | Giaveno (TO - Piemont) | 1874/06/00 | I | 1897/03/17 | Morez-39 |
| OSTORERO | Giovanni | M | Coazze (TO - Piémont) | 1904/06/06 | I | 1922/09/01 | Cernon-39 |
| OSTORERO | Joseph | M | Coazze (TO - Piemont) | 1849/03/00 | I | 1894/12/15 | Lac-des-Rouges-Truites-39 |
| OSTORERO | Joseph | M | Coazze (TO - Piemont) | 1879/09/14 | I | 1897/03/29 | Morez-39 |
| OSTORERO | Sévère | M | Coazze (TO - Piemont) | 1880/08/04 | I | 1897/03/29 | Morez-39 |
| OSTORERO | Pierre | M | Coazze (TO - Piemont) | 1850/00/00 | I | 1897/04/10 | Morez-39 |
| OSTORERO | Louis | M | Coazze (TO - Piemont) | 1863/00/00 | I | 1898/04/01 | Morez-39 |
| OSTORERO | Michel | M | Giaveno (TO - Piemont) | 1849/09/27 | I | 1900/03/05 | Morez-39 |
| OSTORERO | Constantin Félix | M | Giaveno (TO - Piemont) | 1877/10/17 | I | 1897/03/17 | Morez-39 |
| OSTORERO | Sévère | M | Giaveno (TO - Piemont) | 1878/10/05 | I | 1897/03/30 | Morez-39 |
| OSTORERO | Jean | M | Giaveno (TO - Piemont) | 1862/06/25 | I | 1897/03/30 | Morez-39 |
| OSTORERO | Jean Baptiste Auguste | M | Saint-Claude (Jura) | 1888/01/01 | I | 1915/09/000 | Saint-Claude-39 |
| OSTORERO | Vincent Joseph | M | Giaglione (TO - Piemont) | 1879/06/27 | I | 1919/01/00 | Saint-Claude-39 |
| OSTORERO | Mario Marcello | M | Coazze (TO - Piemont) | 1892/02/01 | I | 1911/01/15 | Tancua-39 |
| OSYNACH | Augusta | F | Cériale (SV - Ligurie) | 02/11/1902 | I | 1923/09/27 | Morteau-25 |
| OTELLI | Giuseppe | M | Arvogne (inconnu) | 1895/07/23 | I | 1913/08/09 | Les Longevilles-Mont-D'Or-25 |
| OTHENIN-GIRARD | Louis Constant | M | Chaux de Fonds (La) (canton de Neuchatel) | 1856/04/08 | CH | 1910/08/31 | Morteau-25 |
| OTRIO | Giuseppe | M | Grumolo delle Abbadesse (VI - Vénétie) | 1884/03/28 | I | 1923/08/10 | Morbier-39 |
| OTRIO | Giuseppe | M | Grumolo delle Abbadesse (VI - Vénétie) | 1884/03/28 | I | 1923/08/10 | Morbier-39 |
| OTRIO | Antoine | M | Camisano (2 communes) | 1913/07/26 | I | 1924/02/00 | Morez-39 |
| OTT | Jean Georges | M | Ornans (Doubs - France) | 1927/03/27 | CH | Ornans-25 | |
| OTT | Jean Christian | M | Zurich (canton de Zurich) | 1898/09/25 | CH | Ornans-25 | |
| OTTH | Jacob | M | Meiringen (BE) | 1883/04/13 | CH | 1901/07/20 | Mouthe-25 |
| OTTINO | Jean | M | Pralungo (BI - Piémont) | 1865/08/06 | I | 1895/04/23 | Morez-39 |
| OTTOLINI | Enrico | M | Chaux de Fonds (La) (canton de Neuchatel - Suisse) | 1900/11/04 | I | 1920/10/08 | Morteau-25 |
| OTTONE | Francesco | M | Prato Sesia (NO - Piemont) | 1884/04/17 | I | 1914/03/13 | Saint-Julien-39 |
| OTTONI | Francesco | M | Prato Sesia (NO - Piemont) | 1879/06/29 | I | 1898/09/20 | Morez-39 |
| OTTONO | Yacinte | M | Correggio (RE - Emilie-Romagne) | 1907/08/08 | I | 1930/05/02 | Messia-sur-Sorne-39 |
| OUALE | Efreio | M | Uras (OR - Sardaigne) | 1874/06/06 | I | 1913/04/05 | Les Longevilles-Mont-D'Or-25 |
| OUALI | Salem Ben Ali | M | Aït Atelli | 1888/00/00 | ALG | Dole-39 | |
| OUDORIZZI | Antoine | M | Bolone (inconnu) | 1866/08/15 | A | 1901/03/19 | Bourget (Le)-39 |
| OUDOT | Yvonne Louise Léonie | F | Sombacour (Doubs – France) | 1900/05/21 | CH | Saint-Pierre-en-Grandvaux-39 | |
| OULEVAY | Henri | M | 1909/05/21 | CH | 1925/06/03 | Mouthe-25 | |
| OULEVEY | Albert Louis | M | Vallorbe (VD) | 1907/01/20 | CH | 1923/06/02 | Mouthe-25 |
| OUTKINE | Yvan | M | Novgorod Lanochina (Russie) | 1894/12/27 | RUS | 1919/10/03 | Bourg-de-Sirod-39 |
| OUZIEL | Isidore | M | Salonique | 1881/04/24 | GR | 1914/03/24 | Morteau-25 |
| OUZIEL | Albert | M | Salonique | 1895/07/15 | GR | 1914/07/30 | Morteau-25 |
| OVANZINI | Pietro | M | Curio (TI) | 1878/01/02 | CH | 1908/00/00 | Morez-39 |
| OVARD | Camille | M | Turin (TO - Piemont) | 1882/00/00 | I | 1899/05/02 | Morez-39 |
| OVENTILE | Giacomo | M | Salto Canavese (non localisé) | 1897/02/01 | I | 1914/05/30 | Les Longevilles-Mont-D'Or-25 |
| OVERNAY | François Marcellin | M | Crésuz (canton de Fribourg) | 1870/08/13 | CH | 1915/11/22 | Frasne-25 |
| OVERNAY | Elise Henriette | F | Saint Claude (Jura - France) | 1906/05/28 | CH | Leschères-39 | |
| OVERNAY | Elise Henriette | F | Saint Claude (Jura - France) | 1906/05/28 | CH | Leschères-39 | |
| OVERNEY | Pierre Emile | M | Cerniat (canton de Fribourg) | 1862/02/01 | CH | 1900/05/21 | Arçon-25 |
| OVERNEY | François Xavier | M | Cerniat (canton de Fribourg) | 1870/08/15 | CH | 1915/03/02 | Frasne-25 |
| OVERNEY | Marie Anne | F | Cerniat (canton de Fribourg) | 1902/01/23 | CH | Frasne-25 | |
| OVERNEY | Louis | M | Cerniat (canton de Fribourg) | 1903/03/29 | CH | Frasne-25 | |
| OVERNEY | Joséphine | F | Cerniat (canton de Fribourg) | 1904/03/13 | CH | Frasne-25 | |
| OVERNEY | Louis Adrien | M | Cerniat (canton de Fribourg) | 1905/03/22 | CH | Frasne-25 | |
| OVERNEY | Louis Maurice | M | Boncourt (canton du Jura) | 1875/09/17 | CH | 1901/12/10 | Morez-39 |
| OVI | Giuseppe | M | Vetto (RE - Emilie-Romagne) | 1867/00/00 | I | 1900/04/25 | Etrepigney-39 |
| OVI | Gisberto | M | Castelnovo ne' Monti (RE - Emilie-Romagne) | 1872/12/08 | I | 1902/12/02 | Fraisans-39 |
| OVTCHINNIKOFF | Vladimir | M | Pliouskov | 1876/07/11 | RUS | 1922/11/15 | Fougerolles-70 |
| OXNER | Jean Etienne | M | Etoile (L') (Jura - France) | 1821/02/10 | CH | Saint-Julien-39 | |
| OXNER | César Auguste | M | St Julien (Jura - France) | 1859/11/06 | CH | Saint-Julien-39 | |
| OZIO | Giovanni | M | Brembate (BG - Lombardie) | 1886/05/14 | I | 1912/06/11 | Les Longevilles-Mont-D'Or-25 |