ALLEN COUNTY DEATH INDEX
| Name | Death Date | Age at Death | Volume | Certificate |
| Myrtie E. Oaks | 17 Oct 1915 | 33 Years | 15 | 23657 |
| George M. Ogles | 03 Feb 1917 | 57 Years | 17 | 3090 |
| Hascal R. Ogles | 13 May 1918 | 1 Month | 18 | 14728 |
| John F. Ogles | 13 Mar 1920 | 29 Years | 20 | 12895 |
| Ruth Ogles | 10 Jan 1928 | 62 Years | 28 | 24 |
| Sadie L. Ogles | 07 Nov 1911 | 1 Month | 11 | 27458 |
| William C. Ogles | 13 Mar 1920 | 1 Year | 20 | 12896 |
| Adeline Oglesby | 07 Apr 1921 | 60 Years | 21 | 7040 |
| Lora H. Oglesby | 29 Nov 1911 | 25 Years | 11 | 30132 |
| Lottie A. Oglesby | 10 Mar 1915 | 14 Years | 15 | 5794 |
| Moses Oglesby | 23 Nov 1911 | 1 Month | 11 | 30130 |
| Delia K. Ohlenacker | 02 Mar 1927 | 65 Years | 27 | 4951 |
| B J. Oldfield | 11 Dec 1924 | 1 Month | 24 | 26282 |
| Lottie D. Oldfield | 12 Dec 1917 | 4 Years | 17 | 31941 |
| Benjamin H. Oliphant | 10 Aug 1916 | 27 Years | 16 | 19786 |
| Estella F. Oliphant | 15 Aug 1912 | 27 Years | 12 | 21242 |
| John R. Oliphant | 05 Nov 1912 | 21 Years | 12 | 26811 |
| Lou M. Oliphant | 27 May 1911 | 33 Years | 11 | 11403 |
| Patsy A. Oliphant | 20 Aug 1919 | 81 Years | 19 | 28921 |
| Wm M. Oliphant | 21 Aug 1916 | 57 Years | 16 | 19787 |
| Allen C. Oliver | 06 Apr 1929 | 74 Years | 29 | 10996 |
| Ambers Oliver | 24 Mar 1911 | 1 Month | 11 | 5392 |
| America M. Oliver | 13 May 1927 | 77 Years | 27 | 9945 |
| Angeline H. Oliver | 24 Feb 1917 | 79 Years | 17 | 3110 |
| Ana Oliver | 25 Oct 1914 | 25 Years | 14 | 25040 |
| Della Oliver | 25 Apr 1922 | 40 Years | 22 | 17097 |
| Eldorus Oliver | 21 Feb 1912 | 48 Years | 12 | 3105 |
| Frederic A. Oliver | 17 Jun 1923 | 60 Years | 23 | 14831 |
| Hamp Oliver | 31 May 1915 | 1 Month | 15 | 11541 |
| Hettie Oliver | 04 Aug 1911 | 35 Years | 11 | 19942 |
| James M. Oliver | 11 Jan 1929 | 96 Years | 29 | 34 |
| Jim Oliver | 08 Jun 1924 | 48 Years | 24 | 24012 |
| John R. Oliver | 20 Mar 1916 | 79 Years | 16 | 6653 |
| Jola G. Oliver | 29 Apr 1928 | 6 Years | 28 | 8385 |
| Lady G. Oliver | 20 Dec 1925 | 43 Years | 25 | 28133 |
| Lillie M. Oliver | 25 Feb 1918 | 26 Years | 18 | 3080 |
| Mary P. Oliver | 31 May 1924 | 81 Years | 24 | 10641 |
| Matilda E. Oliver | 26 Jul 1916 | 48 Years | 16 | 17074 |
| Matilda A. Oliver | 30 Jun 1922 | 87 Years | 22 | 14553 |
| Milly J. Oliver | 25 Sep 1929 | 74 Years | 29 | 25283 |
| Noel Winston Oliver | 31 May 1925 | 87 Years | -- | 10910 |
| Oscar B. Oliver | 16 Nov 1923 | 32 Years | 23 | 27043 |
| Perry D. Oliver | 04 Apr 1930 | 1 Month | 30 | 8150 |
| Rebecca Oliver | 05 Jun 1920 | 89 Years | 20 | 15199 |
| Robert Oliver | 19 Oct 1914 | 84 Years | 14 | 25038 |
| Roy C. Oliver | 28 Feb 1918 | 1 Month | 18 | 3097 |
| Telitha C. Oliver | 04 Feb 1929 | 74 Years | 29 | 4888 |
| William R. Oliver | 31 Mar 1930 | 71 Years | 30 | 5421 |
| Willie G. Oliver | 22 Jul 1925 | 72 Years | 25 | 23058 |
| Price Oliver Jr | 24 Jan 1928 | 83 Years | 28 | 28 |
| Nancy A. Olliner | 29 Jun 1913 | 41 Years | 13 | 14778 |
| A B. Olsteen | 14 Dec 1918 | 50 Years | 19 | 40 |
| N W. Olver | 27 May 1925 | 85 Years | 25 | 10910 |
| Alpha Oneal | 22 Sep 1916 | 6 Years | 16 | 22408 |
| Andrew J. Oneal | 30 Aug 1918 | 59 Years | 18 | 19317 |
| Clanny Oneal | 30 Oct 1915 | 1 Year | 15 | 25820 |
| David W. Oneal | 09 Nov 1923 | 64 Years | 23 | 29403 |
| Doc O. Oneal | 23 Jul 1925 | 17 Years | 25 | 20712 |
| Emly Oneal | 07 Apr 1924 | 38 Years | 24 | 8100 |
| Francis C. Oneal | 28 Aug 1927 | 88 Years | 27 | 17216 |
| Geo W. Oneal | 04 Nov 1920 | 39 Years | 20 | 26255 |
| James W. Oneal | 20 Nov 1915 | 69 Years | 15 | 26195 |
| Johnellee Oneal | 29 May 1918 | 36 Years | 18 | 14742 |
| Marshal D. Oneal | 04 Sep 1927 | 45 Years | 27 | 19555 |
| Martha Oneal | 15 Jan 1920 | 81 Years | 20 | 25 |
| Olie Oneal | 26 Nov 1930 | 35 Years | 30 | 26296 |
| Virginia S. Oneal | 16 Mar 1924 | 1 Month | 24 | 5146 |
| Isabelle Orr | 23 Feb 1911 | 46 Years | 11 | 2749 |
| Guy Osborne | 18 Feb 1927 | 14 Years | 27 | 2681 |
| Nancy Osborne | 22 Jun 1924 | 89 Years | 24 | 15152 |
| Camille B. Overall | 09 Sep 1930 | 11 Years | 30 | 21315 |
| Alice Overton | 22 Mar 1923 | 75 Years | 23 | 6598 |
| James H. Owen | 31 May 1927 | 1 Month | 27 | 9943 |
| Emmajace Owens | 18 May 1924 | 1 Month | 24 | 10653 |
| Hue Owens | 27 Sep 1918 | 1 Month | 18 | 21743 |
| Iva Owens | 05 Feb 1919 | 20 Years | 19 | 4572 |
| Jonnie J. Owens | 06 Feb 1921 | 1 Month | 21 | 7023 |
| Willie C. Owens | 06 Nov 1916 | 1 Month | 16 | 27189 |