| Surname | Given | Age | Date | Page | Maiden | Note |
|---|---|---|---|---|---|---|
| Oaklund | Eric | 73 | November 15 | A-27 | ||
| Oberlin | Elta M. | 47 | April 12 | A-22 | ||
| Obolewicz | Jennie | 60 | November 8 | A-27 | Wisniewski | |
| Ochoa | Esteal H. | 47 | June 15 | A-42 | ||
| O'Connor | Elizabeth M. (Marge) | 79 | June 29 | A-26 | ||
| O'Connor | Mark E. | 20 | August 1 | A-25 | ||
| Ocskay | Andrew | 73 | May 20 | A-22 | ||
| Odom | Cynthia | 19 | July 6 | 1 | ||
| O'Donnell | James J. Sr. | 79 | May 25 | A-18 | ||
| O'Donnell | Otto C. (Hans) | 64 | December 13 | A-22 | ||
| Odzinski | Bernice | 60 | April 11 | A-33 | ||
| Ogborn | James T. | 74 | May 2 | A-8 | ||
| Ogle | Herschel A. | 66 | May 2 | A-8 | ||
| O'Herrin | Pauline G. | 66 | November 9 | A-55 | Hutman | |
| Ole | Cathy A. | 19 | August 28 | 1, A-70 | ||
| Olendra | Juozas | 71 | February 18 | A-32 | ||
| Olexa | John Jr. | 73 | February 4 | A-25 | ||
| Oliver | Kyra A. | 57 | May 12 | A-37 | ||
| Oliver | Lillian M. | 73 | February 4 | A-25 | ||
| Ollo | Mary | 74 | June 27 | A-16 | ||
| Ollrich | Amelia | 83 | September 22 | A-34 | ||
| Oltz | Alice | 77 | September 20 | A-14 | ||
| O'Malley | Patrick G. Sr. | 56 | August 12 | A-40 | ||
| Ondo | Andrew | 76 | December 12 | A-18 | ||
| Ondo | Frank Sr. | 70 | January 28 | A-46 | ||
| Ondo | Zigmund | 63 | July 18 | A-39 | ||
| O'Neill | Virginia | 67 | November 10 | A-14 | Doran | |
| Onesky | James | 71 | January 4 | A-12 | ||
| Onischuk | Andrew | 58 | September 26 | A-17 | ||
| Ooms | Grace | 74 | May 22 | A-42 | ||
| Oostman | Henry | 65 | February 8 | A-16 | ||
| Opatera | Joseph | 80 | March 24 | A-20 | ||
| Oprea | John J. | 56 | April 18 | A-16 | ||
| Oprisko | Anna | 77 | March 25 | A-4 | ||
| Orha | Steve D. | 69 | June 19 | A-65 | ||
| Oria | Frances | 67 | January 10 | A-21 | ||
| Origel | Lillian | 65 | April 14 | A-34 | Buckley | |
| Orlando | Dominic J. | 71 | May 27 | A-6 | ||
| O'Rourke | Allan | 81 | March 18 | A-26 | ||
| Orsini | Orest | 67 | February 13 | A-34 | ||
| Orzel | Stanley C. | 73 | August 4 | A-30 | ||
| Osborn | John Earl | 76 | November 23 | A-6 | ||
| Osby | Harold E. | 72 | May 22 | A-42 | ||
| Osika | Louis S. (Jess) | 54 | April 24 | A-26 | ||
| Ospina | Angel Javier | September 19 | 1 | |||
| Ostaszewski | Anthony | 89 | July 12 | A-15 | ||
| Ostrowski | Michael W. | 74 | February 23 | A-36 | ||
| Oszuscik | John E. | 93 | August 9 | A-15 | ||
| Ottarson | Harold L. | 63 | June 27 | A-16 | ||
| Otto | Anna | 89 | October 26 | A-71 | ||
| Otto | Henry R. | 74 | March 24 | A-20 | ||
| Ouellette | Ella M. | 74 | June 9 | A-51 | ||
| Ouorsler | Josephine M. | 86 | January 20 | A-32 | ||
| Overack | Violet B. | 73 | May 8 | A-40 | Also listed as Owczarzak. | |
| Owczarzak | Theodore (Ted) | 36 | January 24 | A-16 | ||
| Owens | Cecil | 55 | September 19 | A-7 | ||
| Owings | Sellina | 82 | March 28 | A-16 | ||
| Oyster | Mary E. | 75 | June 27 | A-16 | ||
| Ozarek | Mark | 24 | May 22 | A-42 | ||
| Ozelie | Richard | 53 | April 22 | A-22 |