A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | W | Y | Z
| Name | Reference | File |
|---|---|---|
| O?Bryan, Daisy E. | 7303 | |
| O?Bryan, James B. | 3212 | |
| O?Bryan, James C | 9063 | |
| O?Bryan, Lamar Sr. | 7300 | |
| O?Bryan, Leola | 4478 | |
| O?Connell, Thomas | 3417 | |
| O?Conner, John | 4813 | |
| O?Conner, Mary | 4213 | |
| O?Donohue, John | 3386 | |
| O?Halloran, Edward | 3786 | |
| O?Halloran, Edward | 4016 | |
| O?Neil, L.W. | 4438 | |
| O?Niel, George M. | 1175 | |
| O?Reilly, Clara E. | 5580 | |
| O?Reilly, Luke Gregory | 6494 | |
| O?Riley, Patrick | 2131 | |
| O?Shaugnessy, Frank J. | 3428 | |
| Obetz, Anna | 4116 | |
| Obetz, Clarence | 5317 | |
| Obetz, Harry | 6956 | |
| Obetz, Samuel | 5050 | |
| Oestreich, Edward R. | 5461 | |
| Oestreich, Henry | 2720 | |
| Oetting, Elva | 4379 | |
| Oetting, William J. | 3082 | |
| Oglesby, W.W. | 566 | |
| Old, Mary | 8373 | |
| Old, O.C. | 5628 | |
| Oldham, Anna E. | 1927 | |
| Oldham, G. G. | 7700 | |
| Oldham, George B. | 1576 | |
| Oldham, Harry | 7784 | |
| Oldham, Henry | 3137 | |
| Oldham, J.G. | 4237 | |
| Oldham, Jarvis G. | 70 | |
| Oldham, Marion G. | 972 | |
| Oldham, Nancy L. | 1436 | |
| Oldham, Pearl | 8841 | |
| Oldvader, William | 1714 | |
| Olinger, J.J. | 631 | |
| Olinger, William G | 9816 | |
| Oliver, Alfonzo | 7088 | |
| Oliver, Delilah A. | 3749 | |
| Oliver, John | 8836 | G |
| Olsen, Nelson | 1572 | |
| Oniel, Geo. M | 1175 | |
| Onstott, George Edward | 6013 | |
| Orr, Harry W. | 7187 | |
| Orr, Julia Edith | 5506 | |
| Orrison, Amos A. | 6986 | |
| Orthman, Lawrence | 8074 | |
| Orthman, Mary Frances | 8328 | |
| Orthman, Mary Frances | 8333 | |
| Osborn, Lilly Blanche | 7720 | |
| Osborn, Lilly Blanche | 8218 | |
| Osborn, Maxwell E. | 8155 | |
| Osborn, Russel W Sr. | 7497 | |
| Osbourn, R.L. | 4044 | |
| Osgood, Elijah S. | 2534 | |
| Osterhaus, Fredrick | 998 | |
| Osterman, Elizabeth | 4123 | |
| Osterman, Herman | 3200 | |
| Osterman, William | 2405 | |
| Ostermann, Elizabeth | 8766 | |
| Ostermann, George Henry | 6473 | |
| Ostermann, William | 7667 | |
| Othic, Harry P. | 5981 | |
| Othic, Harry Russell | 8034 | |
| Othic, Homer E. | 7196 | |
| Othick, Caleb I. | 2705 | |
| Othick, George | 4455 | |
| Otten, William M. | 6718 | |
| Ousley, Mildred I. | 7882 | |
| Outlaw, Rose Anna | 969 | |
| Overbey, Eugene A. | 5576 | |
| Overholt, Henry O. | 993 | |
| Overholt, Lillie L | 9602 | |
| Overholt, Lillie L (2 folders) | 9324 | G |
| Overholt, Martin | 2339 | |
| Overstreet, Hiram | 55 | E |
| Overstreet, Rosa | 1135 | |
| Overton, S.A.C. | 1750 | |
| Overturf, Proctor | 4857 | |
| Overturf, Proctor | 6627 | |
| Owen & Courtney | 1686 | |
| Owen, A.F. | 2225 | |
| Owen, A.F. & Son | 2224 | |
| Owen, Berry | 1642 | |
| Owen, James E. | 1185 | |
| Owen, Jessie M. | 1136 | |
| Owen, Richard | 1322 | |
| Owen, Richard E. | 6618 | |
| Owen, Sarah | 1015 | |
| Owen, Thomas J. | 518 | |
| Owens Berry | 56 | |
| Owens, Ardena | 3863 | |
| Owens, Carl | 7790 | E |
| Owens, Daniel D. | 205 | |
| Owens, Juanita Rogers | 9212 | |
| Owens, Louie | 5737 | |
| Owens, Luther B. | 6191 | |
| Owens, Walter A | 9771 | |
| Owens, William | 410 | E |
| Oxley, Jonathan | 138 |