Find the woman's surname you need then go to the marriage in the husband list
| WIFE | HUSBAND | REMARKS |
| O'Connell | Watt | |
| O'Brien | Finnely | |
| O'Brien | Fox | |
| O'Brien | Goheer | |
| O'Brien | Keenan | |
| O'Brien | Nolan | |
| O'Brien | Reedy | |
| O'Brien | Sheehy | |
| O'Brien | Sniffin | |
| O'Coener | O'toole | |
| O'Coner | Linch | |
| O'Connel | Hogan | |
| O'Connell | Long | |
| O'Connell | O'Connor | |
| O'Conner | Toole | |
| O'Connor | Hennessy | |
| O'Connor | Kirby | |
| O'Connor | Shanahan | |
| O'Dea | Cooney | |
| O'Donnell | Tupper | |
| O'Grady | Barnes | |
| O'Grady | Conway | |
| O'Grady | Gallagher | |
| O'Grady | Hayes | |
| O'Grady | Hoyes | |
| O'Grady | Kinane | |
| O'Hara | Judge | |
| O'Hern | Garey | |
| O'Hern | Ketelle | |
| O'Laughlin | Lyons | |
| O'Leary | Connell | |
| O'Loughlin | Meany | |
| O'Maley | Feal | |
| O'Maley | Scott | |
| O'Neal | Hupy | |
| O'Neil | Caya | |
| O'Neil | Clark | |
| O'Neil | Driscoll | |
| O'Neil | Driscoll | |
| O'Neil | Enright | |
| O'Neil | McNulty | |
| O'Neil | Morris | |
| O'Neil | Watson | |
| O'Niel | Connell | |
| O'Niel | Shaughnessy | |
| O'Shea | Ward | |
| Oberberger | Altmeyer | |
| Oberg | Oppen | |
| Oberg | Peterson | |
| Obergoeke | Kielsmeier | |
| Obergoker | Meir | |
| Oberland | Bouril | |
| Obrien | Dalland | |
| Obrien | Earles | |
| Obrien | Walsh | |
| Ochs | Klug | |
| Ochs | Meissner | |
| Odegard | Skattebo | |
| Oehldrich | Schutt | |
| Oehlof | Hungsburg | |
| Oehloff | Lawrence | |
| Oemhcen | Pfingston | |
| Oemichen | Dassler | |
| Oemichen | Gersmehl | |
| Oemichen | Langenhahn | |
| Oerding | Kind | |
| Oerding | Knutson | |
| Oerding | Plautz | |
| Oerding | Schultz | |
| Oertling | Burger | |
| Oertmeier | Heinz | |
| Oertmeier | Heinz | |
| Oestreich | Knickrehm | |
| Oestreich | Wintun | |
| Oestreich | Bettcher | |
| Oestreich | Boettcher | |
| Oestreich | Boettcher | |
| Oestreich | Boettcher | |
| Oestreich | Boettger | |
| Oestreich | Bottcher | |
| Oestreich | Comlott | |
| Oestreich | Conrad | |
| Oestreich | Dallmann | |
| Oestreich | Haese | |
| Oestreich | Krueger | |
| Oestreich | Luethge | |
| Oestreich | March | |
| Oestreich | Plinske | |
| Oestreich | Pufahl | |
| Oestreich | Puphal | |
| Oestreich | Rehbein | |
| Oestreich | Schroeder | |
| Oestreich | Seefeldt | |
| Oestreich | Winter | |
| Oestreich | Witt | |
| Oestrich | Holtz | |
| Oestrich | Mueller | |
| Oestrieth | Pufahl | |
| Ohldrich | Hemb | |
| Ohlen | Tegen | |
| Ohler | King | |
| Ohler | Moeller | |
| Ohlinger | Kraus | |
| Ohlinger | Matzek | |
| Ohlinger | Schneider | |
| Ohlmots | Pagel | |
| Ohm | Grumann | |
| Ohm | Muller | |
| Ohrnes | Smith | |
| Ohse | Krueger | |
| Oizikoski | Keziski | |
| Okonski | Kowalski | |
| Okonski | Max | |
| Okouka | Vowak | |
| Okouski | Rugowski | |
| Okuski | Golata | |
| Olcott | McArthey | |
| Oldenbird | Mudel | |
| Oldenburg | Krueger | |
| Oldsdaughter | Haraldson | |
| Oleary | Joyce | |
| Oledaughter | Nelson | |
| Olesdtr | Anderson | |
| Oleson | Anderson | |
| Oleson | Hanson | |
| Oleson | Knudson | |
| Oleson | Oleson | |
| Oleson | Olson | |
| Oleson | Peck | |
| Oleson | Thomas | |
| Oleson | Tilleson | |
| Oliver | Lewis | |
| Ollendorf | Butten | |
| Ollendorf | Wetzel | |
| Ollinger | Phillipsen | |
| Ollson | Willson | |
| Olm | Klemme | |
| Olm | Draheim | |
| Olm | Olm | |
| Olm | Pautz | |
| Olme | Johnson | |
| Olme | Peper | |
| Olmsted | Barnes | |
| Olmsted | Saltzman | |
| Olmutz | Barth | |
| Olp | Gauger | |
| Olp | Gauger | |
| Olp | Knuth | |
| Olp | Maertz | |
| Olp | Paape | |
| Olp | Wegner | |
| Olps | Haese | |
| Olrogge | Bruss | |
| Olsdatter | Amundson | |
| Olsdatter | Berge | |
| Olsdatter | Bergstrom | |
| Olsdatter | Filholm | |
| Olsdaughter | Finkelson | |
| Olsdaughter | Jogerson | |
| Olsdaughter | Knudson | |
| Olsdotter | Olsen | |
| Olsdthr | Amundson | |
| Olsdtr | Erickson | |
| Olsdtr | Johanneson | |
| Olsdtr | Nilson | |
| Olsdtr | Olson | |
| Olsdtr | Rolandson | |
| Olsen | Birkedal | |
| Olsen | Dedrechs | |
| Olsen | Frederickson | |
| Olsen | Gabrielson | |
| Olsen | Gulbrandson | |
| Olsen | Gulliksen | |
| Olsen | Gunderson | |
| Olsen | Hernsen | |
| Olsen | Jacobson | |
| Olsen | Jahobsen | |
| Olsen | Jenssen | |
| Olsen | Jogerson | |
| Olsen | Knudson | |
| Olsen | Larsen | |
| Olsen | Madson | |
| Olsen | Olsen | |
| Olsen | Peterson | |
| Olsen | Pittner | |
| Olsen | Rye | |
| Olsen | Rye Osten | |
| Olsen | Salversen | |
| Olsen | Swensen | |
| Olsen | Thompson | |
| Olsen | Thomson | |
| Olsen | Toresen | |
| Olsen | Wertgaard | |
| Olsen | Wertgard | |
| Olsen | Westgaard | |
| Olson | Michalson | |
| Olson | Alfson | |
| Olson | Alfson | |
| Olson | Anderson | |
| Olson | Bark | |
| Olson | Burrt | |
| Olson | Eriksmaen | |
| Olson | Everson | |
| Olson | Gulbrandson | |
| Olson | Hansen | |
| Olson | Hanson | |
| Olson | Hanson | |
| Olson | Helms | |
| Olson | Hodson | |
| Olson | Hudson | |
| Olson | Hultmann | |
| Olson | Jergenson | |
| Olson | Johnson | |
| Olson | Knap | |
| Olson | Knudson | |
| Olson | Oleson | |
| Olson | Olson | |
| Olson | Paulson | |
| Olson | Peck | |
| Olson | Roulier | |
| Olson | Rozne | |
| Olson | Saboe | |
| Olson | Spencer | |
| Olson | Stenston | |
| Olson | Syverson | |
| Olson | Syvertsen | |
| Olson | Thon | |
| Olson | Torstenson | |
| Olsthr. | Christensen | |
| Omenson | Oleson | |
| Onstad | Anderson | |
| Onstad | Gilbert | |
| Oosterma | Steder | |
| Opichka | Hanek | |
| Opicka | Kozlowsky | |
| Opitzs | Bomuke | |
| Oppen | Aabol | |
| Oppen | Syverson | |
| Orczykowska | Nowak | |
| Ording | Geimer | |
| Ording | Hermann | |
| Ornestorf | Spahr | |
| Orth | Beringer | |
| Orth | Dittmann | |
| Orth | Kaempf | |
| Orth | Mosuch | |
| Orth | Rumph | |
| Orth | Stein | |
| Orthe | Wighard | |
| Ortmeier | Burckhard | |
| Ortmeier | Dircks | |
| Ortmeier | Neuhaus | |
| Osan | Friedel | |
| Osesek | Nowak | |
| Osgood | Carr | |
| Oshea | Ward | |
| Osik | Dembski | |
| Osik | Weier | |
| Osival | Novy | |
| Osolsen | Wrolson | |
| Osoosen | Halverson | |
| Osterich | Weber | |
| Osterloh | Finder | |
| Osterlow | Luebke | |
| Ostermann | Buss | |
| Ostermann | Neumann | |
| Ostermann | Sund | |
| Osthoff | Krieger | |
| Osulsen | Lenz | |
| Osulson | Halverson | |
| Osulson | Peterson | |
| Oswald | Niespoziani | |
| Oswald | Wrong | |
| Oswald | Bemis | |
| Oswald | Breivogel | |
| Oswald | Hlavacek | |
| Oswald | Krajnik | |
| Oswald | Krt | |
| Oswald | Pfunder | |
| Oswald | Popelar | |
| Oswald | Rank | |
| Oswald | Shanda | |
| Oswald | Siebert | |
| Oswald | Wrany | |
| Oswald | Ziesler | |
| Othersall | Smith | |
| Ott | Bonfigt | |
| Ott | Drews | |
| Ott | Drews | |
| Ott | Franke | |
| Ott | Glaeser | |
| Ott | Gottfred | |
| Ott | Koeppen | |
| Ott | Seeger | |
| Ott | Wilharms | |
| Ottelien | Hussey | |
| Ottie | Glasow | |
| Otto | Bigalke | |
| Otto | Birkle | |
| Otto | Burkle | |
| Otto | Cummings | |
| Otto | Luebke | |
| Otto | Mack | |
| Otto | Sommer | |
| Otto | Utech | |
| Otto | Wisch | |
| Otzmann | Mankovski | |
| Ourada | Hynch | |
| Ourada | Hynek | |
| Ousik | Bohacek | |
| Oustad | Markee | |
| Outzen | Pedersen | |
| Overman | Gerpheide | |
| Oves | Sedlachek | |
| Owart | Bauknecht | |
| Owen | Davis | |
| Owen | Walles | |
| Owen | Waltes | |
| Owichel | Zander | |
| Ozsek | Krzyzynski |