| Name | Line | Page | District | Soundex
| Oldham, Levar | 2 | 3A | 109 | O435
| | Oldham, William | 17 | 3A | 109 | O435
| | Oldroyd, Clerance | 13 | 15A | 110 | O436
| | Oldroyd, Irvin | 75 | 8B | 105 | O436
| | Oldroyd, John T. | 6 | 5A | 105 | O436
| | Oldroyd, John | 46 | 5A | 105 | O436
| | Oldroyd, Mary J. | 12 | 2A | 105 | O436
| | Oldroyd, Peter C. | 12 | 2A | 105 | O436
| | Oldroyd, Peter M. | 31 | 10A | 105 | O436
| | Oldroyd, Robert M. | 36 | 10A | 105 | O436
| | Ollerton, Seth H. | 12 | 7A | 110 | O463
| | Olsen, Aaron | 94 | 10B | 101 | O425
| | Olsen, Alice | 11 | 1A | 104 | O425
| | Olsen, Ana Christina | 50 | 16A | 109 | O425
| | Olsen, Andrew C. | 10 | 9A | 101 | O425
| | Olsen, Andrew P. | 99 | 9B | 101 | O425
| | Olsen, Andrew | 93 | 9B | 101 | O425
| | Olsen, Andrew | 67 | 11B | 171 | O425
| | Olsen, Annie E. | 9 | 1A | 104 | O425
| | Olsen, Anthon | 70 | 6B | 101 | O425
| | Olsen, Anthon | 76 | 9B | 104 | O425
| | Olsen, Benjiman | 92 | 3B | 172 | O425
| | Olsen, Beulah | 15 | 9A | 101 | O425
| | Olsen, C. Hyrum | 95 | 2B | 99 | O425
| | Olsen, Caroline | 93 | 4B | 102 | O425
| | Olsen, Charles A. | 44 | 5A | 100 | O425
| | Olsen, Charles | 51 | 7B | 101 | O425
| | Olsen, Chris | 36 | 11A | 101 | O425
| | Olsen, Christian P. | 55 | 6B | 103 | O425
| | Olsen, Christina | 78 | 14B | 100 | O425
| | Olsen, Daniel | 97 | 9B | 101 | O425
| | Olsen, David | 14 | 24A | 107 | O425
| | Olsen, Earl | 73 | 24B | 110 | O425
| | Olsen, Emil. | 50 | 10A | 102 | O425
| | Olsen, Emma A. | 63 | 10B | 101 | O425
| | Olsen, Emna K. | 19 | 4A | 101 | O425
| | Olsen, Eric J. | 82 | 11B | 104 | O425
| | Olsen, Eric | 73 | 9B | 104 | O425
| | Olsen, Frank Ervin | 86 | 6B | 104 | O425
| | Olsen, Frank M. | 54 | 2B | 100 | O425
| | Olsen, George F. | 38 | 1A | 103 | O425
| | Olsen, George | 3 | 10A | 110 | O425
| | Olsen, Guy | 198 | 1B | 110 | O425
| | Olsen, H. P. | 13 | 21A | 110 | O425
| | Olsen, Hans C. | 45 | 10A | 99 | O425
| | Olsen, Hans P. | 76 | 9B | 101 | O425
| | Olsen, Heber S. | 35 | 14A | 103 | O425
| | Olsen, Henry P. | 7 | 12A | 110 | O425
| | Olsen, Herbert | 10 | 1A | 104 | O425
| | Olsen, Hyrum | 2 | 2A | 104 | O425
| | Olsen, Isaac C. | 47 | 14A | 172 | O425
| | Olsen, Iva | 16 | 9A | 101 | O425
| | Olsen, Jacob E. | 97 | 5B | 99 | O425
| | Olsen, James G. | 77 | 8B | 101 | O425
| | Olsen, James R. | 98 | 21B | 107 | O425
| | Olsen, James | 97 | 16B | 110 | O425
| | Olsen, John K. | 3 | 10A | 101 | O425
| | Olsen, John L. | 51 | 6B | 172 | O425
| | Olsen, John M. | 51 | 2B | 172 | O425
| | Olsen, John T. | 6 | 22A | 110 | O425
| | Olsen, John W. | 9 | 6A | 100 | O425
| | Olsen, John | 77 | 17B | 107 | O425
| | Olsen, John | 92 | 18B | 110 | O425
| | Olsen, Jorgen E. | 19 | 10A | 102 | O425
| | Olsen, Lawrence Wm. | 75 | 14B | 100 | O425
| | Olsen, Leander | 18 | 14A | 172 | O425
| | Olsen, Lehi | 55 | 10B | 99 | O425
| | Olsen, Louis C. | 67 | 6B | 104 | O425
| | Olsen, Lydia | 54 | 10B | 103 | O425
| | Olsen, Myra | 100 | 5B | 172 | O425
| | Olsen, Ole M. | 88 | 7B | 102 | O425
| | Olsen, Orange | 48 | 1A | 101 | O425
| | Olsen, Oris A. | 87 | 18B | 107 | O425
| | Olsen, Oscar E. | 52 | 24B | 110 | O425
| | Olsen, Oscar | 56 | 11B | 104 | O425
| | Olsen, Osmond | 40 | 23A | 107 | O425
| | Olsen, Otto G. | 62 | 9B | 102 | O425
| | Olsen, Otto | 32 | 8A | 101 | O425
| | Olsen, Peter O. | 84 | 3B | 109 | O425
| | Olsen, Peter | 48 | 6A | 172 | O425
| | Olsen, Rasmus Ali | 76 | 11B | 101 | O425
| | Olsen, Ruby | 57 | 11B | 104 | O425
| | Olsen, Ruby | 89 | 18B | 107 | O425
| | Olsen, Ryland | 72 | 9B | 101 | O425
| | Olsen, Stella | 2 | 10A | 101 | O425
| | Olsen, Swen M. | 91 | 6B | 110 | O425
| | Olsen, Valdon | 88 | 18B | 107 | O425
| | Olsen, Victoria M. | 90 | 7B | 102 | O425
| | Olsen, William G. | 26 | 10A | 102 | O425
| | Olsen, William | 44 | 1A | 110 | O425
| | Olson, Bertie | 56 | 2B | 101 | O425
| | Olson, Daniel L. | 70 | 13B | 172 | O425
| | Olson, Ellen K. | 90 | 2B | 105 | O425
| | Olson, Emilie H. | 73 | 1B | 109 | O425
| | Olson, H. Peter | 52 | 5B | 105 | O425
| | Olson, James A. | 94 | 7B | 101 | O425
| | Olson, James | 48 | 6A | 105 | O425
| | Olson, James | 11 | 13A | 172 | O425
| | Olson, John | 100 | 10B | 105 | O425
| | Olson, Lowrence P. | 34 | 1A | 105 | O425
| | Olson, Niels J. | 38 | 3A | 109 | O425
| | Olson, Ole | 62 | 1B | 172 | O425
| | Olson, Orson W. | 30 | 2A | 102 | O425
| | Olson, Stima | 66 | 12B | 103 | O425
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