| Father | Henry William Willenbring (1861 - 1950) |
| Mother | Margaret Koetter (1874 - 1972) |
| Sibling | Edward Herman Willenbring (1899 - 1978) |
| Sibling | Josephine Willenbring (1902 - 1980) |
| Sibling | Bernard Lawrence Willenbring (1904 - 1907) |
| Sibling | Theresa Willenbring (1906 - ) |
| Sibling | Ludwig Willenbring (1908 - 1991) |
| Sibling | Bertha H. Willenbring (1909 - 2009) |
| Sibling | Mathias Willenbring (1911 - 1998) |
| Sibling | Agnes "Sr. Ansgar OSB" Willenbring (1913 - 2009) |
| Sibling | Bernard Henry Willenbring (1915 - 1984) |
| Sibling | Othmar Leander Willenbring (1916 - 1987) |
| Sibling | Irmund Willenbring |