| Father | David B. BOWLBY (1834 - 1917) |
| Mother | Mary Jane CASE (1840 - 1898) |
| Sibling | Mathias C. BOWLBY (1860 - 1925) |
| Sibling | Sarah "Sally" BOWLBY (1861 - 1946) |
| Sibling | Eleanora B. BOWLBY (1863 - 1941) |
| Sibling | Catherine E. BOWLBY (1864 - 1928) |
| Sibling | Jane "Jennie" BOWLBY (1867 - 1936) |
| Sibling | Daniel E. BOWLBY (1868 - 1906) |
| Sibling | Joseph W. BOWLBY (1870 - 1935) |
| Sibling | Harvey BOWLBY (1872 - 1898) |
| Sibling | Lillian BOWLBY (1874 - 1962) |
| Sibling | Edith BOWLBY (1876 - 1936) |
| Sibling | Estella "Stella" BOWLBY (1879 - 1934) |
| Sibling | James Artemus "Art" BOWLBY (1882 - 1951) |