| Name | Birthdate | Age | Height | Build | Eyes | Hair | Birthplace | Residence | Occupation | Relative Mentioned | ||||||||
| Oblinger | John Asa | 26 | Mar | 1889 | 26 | Tall | Medium | Brown | Black | Fountain Co.,IN | Montezuma | Farmer | Wife and 2 children | |||||
| Odell | Fred | 10 | Feb | 1885 | 33 | Medium | Medium | Brown | Black | US | Judson | Farmer | Margaret Odell | |||||
| Odell | Worth Thomas | 14 | Apr | 1884 | 34 | Medium | Medium | Blue | Black | US | Carbon | Mining | Laura Odell | |||||
| Odell | Thomas A | 13 | Sep | 1875 | 42 | Medium | Medium | Blue | Brown | US | Tangier | Farmer | Rose E Odell | |||||
| Ogden | William | 18 | Jun | 1900 | 18 | Short | Medium | Gray | L B | US | Rosedale | Coal Mining | Ann Ogden | |||||
| Ogle | Joseph Tilford | 25 | Nov | 1886 | 30 | Short | Slender | Brown | Brown | Sheridan, IN | Rockville | Harness Maker | Wife and 3 children | |||||
| O'Hair | Lawrence Clay | 12 | Jul | 1887 | 29 | Medium | Medium | Blue | Brown | Greencastle, IN | Rockville | Farmer | Wife and 4 children | |||||
| O'Haver | William D | 20 | May | 1875 | 43 | Medium | Medium | Brown | Black | US | Judson | Blacksmith | Lydia A O'Haver | |||||
| O'Haver | Frank T | 21 | Mar | 1892 | 25 | Short | Slender | Blue | Brown | Rockville, IN | Rockville | Farmer | Wife and one child | |||||
| Olds | Harry D | 29 | Jul | 1889 | 27 | Medium | Medium | Brown | Brown | Winemack, IN | Rosedale | Section Hand | Wife and 2 children | |||||
| Oliver | John Wesley | 4 | Aug | 1896 | 21 | Medium | Medium | Brown | Brown | Indiana | Rockville | Farmer | None | |||||
| Olson | Harry | 10 | Apr | 1889 | 28 | Medium | Medium | Blue | Brown | Wisconsin | Marshall | Farm Laborer | Wife and child | |||||
| O'Neal | Judson | 13 | Mar | 1875 | 43 | Medium | Medium | Brown | Brown | US | Terre Haute, IN | None | Clara O'Neal | |||||
| Orahood | Seward L | 24 | Aug | 1888 | 29 | Medium | Slender | Gray | Red | Tangier | Tangier | Farming | Wife and child | |||||
| Orlea | Alexander | 5 | May | 1897 | 21 | Medium | Medium | Brown | Brown | Rockville, IN | Rockville | Mining | Philip Bert Orlea | |||||
| Orlea | Charles | 7 | Aug | 1893 | 23 | Medium | Medium | Blue | Black | Indiana | Rockville | Mining | None | |||||
| Osborn | Albert | 24 | Mar | 1897 | 21 | Medium | Medium | Blue | Brown | Montezuma, IN | Montezuma | Not listed | L Osborn | |||||
| Osborn | Ora Howard | 3 | Sep | 1897 | 21 | Medium | Slender | Brown | Brown | US | Rockville | Miner | James Osborn | |||||
| Osborn | Virgil G | 11 | Dec | 1881 | 36 | Medium | Medium | Blue | Black | US | Tangier | Farmer | Odelia Osborn | |||||
| Osborn | William E | 22 | Oct | 1882 | 35 | Medium | Medium | Blue | Brown | US | Guion | Teamster | Mrs. Maurice Smith | |||||
| Osborn | Frederic Verne | 5 | Apr | 1898 | 20 | Medium | Medium | Gray | Light | US | Rockville | Student | Maude Osborn | |||||
| Osborn | John S | 24 | May | 1889 | 28 | Tall | Medium | Blue | Brown | Nyesville, IN | Rockville | Coal Mining | Father and mother | |||||
| Osborn | Lemuel | 14 | Apr | 1892 | 25 | Medium | Medium | Blue | Brown | Nyesville, IN | Rockville | Coal Mining | Father and mother | |||||
| Osborn | Oliver Tolman | 6 | Nov | 1894 | 22 | Medium | Slender | Blue | Brown | Nyesville, IN | Rockville | Farm Hand | None | |||||
| Osborn | Warren G | 18 | Apr | 1891 | 26 | Short | Medium | Blue | Brown | Tangier | Tangier | Farm Hand | None | |||||
| Osmon | Fred A | 19 | Jun | 1875 | 43 | Medium | Medium | Blue | Light | US | Judson | Farmer | Hattie Osmon | |||||
| Oswalt | George William | 11 | May | 1876 | 42 | Medium | Stout | Gray | Dark | US | Diamond | Coal Mining | Mary Oswalt | |||||
| Ott | John | 22 | Apr | 1882 | 36 | Medium | Medium | Blue | Light | US | Rockville | Laborer | Goldie Ott | |||||
| Ott | J Noel | 10 | Aug | 1898 | 20 | Tall | Medium | Bl | Brown | US | Rockville | Student | Dick H Ott | |||||
| Overpeck | Orval | 8 | Oct | 1899 | 18 | Short | Medium | Gray | Light | US | Rockville | Farmer | James H Overpeck | |||||
| Overpeck | Thomas Cleveland | 13 | Feb | 1885 | 33 | Tall | Slender | Blue | Black | US | Lena | Farming | E Overpeck | |||||
| Overpeck | Lawrence Everett | 9 | Jan | 1888 | 29 | Short | Slender | Blue | Black | Parke Co., IN | Rosedale | Farmer | Wife and 3 sons | |||||
| Overpeck | Alva Clay | 13 | Nov | 1885 | 32 | Medium | Medium | Blue | Brown | US | Rockville | Farming | Gertrude Overpeck | |||||
| Overpeck | Oscar Bryan | 31 | Dec | 1897 | 20 | Medium | Medium | Blue | Brown | US | Catlin | Farming | Oscar Overpeck | |||||
| Overpeck | Ova Glenn | 17 | Apr | 1899 | 19 | Medium | Slender | Blue | Dark | US | Rockville | Student | Howard Overpeck | |||||
| Overpeck | Harry Lee | 2 | Mar | 1895 | 22 | Medium | Medium | Blue | Light | Rockville, IN | Rockville | Farmer | None | |||||
| Overpeck | Luther | 11 | Dec | 1889 | 27 | Tall | Medium | Blue | Brown | Rockville, IN | Rockville | Mail Carrier | None | |||||
| Overpeck | John Clay | 3 | Jun | 1895 | 22 | Medium | Medium | Brown | Black | Rosedale, IN | Rosedale | Student | None | |||||
| Overpeck | Robert Clore | 6 | Sep | 1892 | 25 | Tall | Medium | Blue | Brown | Rockville, IN | Rockville | Farmer | None | |||||
| Overpeck | George Howard | 3 | Oct | 1895 | 21 | Medium | Medium | Gray | Brown | Bridgeton, IN | Rockville | Farmer | None | |||||
| Overpeck | Myrl Clint | 20 | Feb | 1893 | 24 | Medium | Medium | Brown | Black | Rockville, IN | Rockville | Farmer | None | |||||
| Overpeck | Henry Webster | 2 | Oct | 1895 | 21 | Medium | Medium | Gray | Brown | Catlin, IN | Rosedale | Farmer | Tyre Overpeck | |||||
| Overpeck | George Gilbert | 2 | Jun | 1890 | 28 | Medium | Medium | Brown | Black | Parke Co., IN | Rosedale | School Teacher | None | |||||
| Overpeck | Earl E | 23 | May | 1899 | 19 | Tall | Medium | Blue | Brown | US | Rockville | Farmer | Elias Overpeck | |||||
| Overpeck | Frank Leslie | 3 | Sep | 1876 | 42 | Medium | Medium | Blue | Brown | US | Rockville | Farming | Myrtle Overpeck | |||||
| Overpeck | Elias | 2 | Jun | 1875 | 43 | Tall | Slender | Blue | Light | US | Rockville | Farmer | Mary Overpeck | |||||
| Overpeck | Paul Holmes | 15 | Dec | 1899 | 18 | Medium | Medium | Gray | Red | US | Rockville | Mechanic | Frank Overpeck | |||||
| Overpeck | Perley Hugh | 12 | Feb | 1888 | 29 | Tall | Medium | Blue | Brown | Rockville, IN | Rockville | Mechanic | Wife and 2 children | |||||
| Overpeck | Arthur Roscoe | 10 | Oct | 1889 | 27 | Medium | Medium | Gray | Light | Rockville, IN | Rockville | Farming | Wife and child | |||||
| Overpeck | Harold Revers | 2 | Mar | 1895 | 22 | Medium | Medium | Brown | Black | Rockville, IN | Rockville | Farming | None | |||||
| Overpeck | Oren | 16 | Jul | 1888 | 28 | Tall | Medium | Blue | Brown | Rockville, IN | Rockville | Farming | None | |||||
| Overpeck | Hewey Miller | 13 | Jun | 1891 | 25 | Tall | Medium | Brown | Black | Rockville, IN | Rockville | Farming | Wife and child | |||||
| Overpeck | Eddie | 30 | May | 1887 | 30 | Tall | Medium | Blue | Dark | Bellmore, IN | Rockville | Farming | Two children | |||||
| Owens | David | 17 | Mar | 1875 | 44 | Tall | Stout | Blue | Black | US | Rosedale | Miner | Annie Owens | |||||
| Owens | William Jasper | 9 | Oct | 1875 | 43 | Medium | Slender | Gray | Brown | US | Terre Haute, IN | None | None | |||||
| Owen | Clarence Pressley | 10 | Aug | 1885 | 33 | Medium | Medium | Bl | Brown | US | Rockville | General Work | Biddie Owen | |||||
| Owen | Fred S | 22 | Oct | 1887 | 29 | Tall | Medium | Blue | Brown | Marshall, IN | Marshall | Blacksmith | Wife and 2 children | |||||
| Oxley | Morton Elsworth | 13 | Mar | 1891 | 26 | Tall | Slender | Brown | Brown | Springfield, NE | Montezuma | Telegraph Operator | Mother | |||||