| Father | Leopold Donabauer (1882 - 1963) |
| Mother | Margaret Dorothy Reisinger (1896 - 1984) |
| Sibling | Herman Joseph Donabauer (1916 - 1989) |
| Sibling | Bernard Math Donabauer (1917 - 1997) |
| Sibling | Alphonse Joseph Donabauer (1918 - 1919) |
| Sibling | Hildegard Donabauer |
| Sibling | Alphonse Joseph Donabauer (1922 - 2002) |
| Sibling | Valentine Donabauer (1924 - 1993) |
| Sibling | Daniel M. Donabauer (1928 - 2009) |
| Sibling | Florian Timothy Donabauer (1930 - 1962) |
| Sibling | Rosella Donabauer |
| Sibling | Othilia Donabauer |
| Sibling | Gilbert F. Donabauer (1936 - 1995) |
| Sibling | Joan Donabauer |
| Sibling | Leopold Donabauer Jr. (1940 - ) |
| Sibling | Mary Ann Donabauer (1941 - 1941) |