| Father | Hubert Stephen Welle (1873 - 1943) |
| Mother | Anna Sand (1877 - 1930) |
| Sibling | Christopher Ludwig Welle (1898 - 1965) |
| Sibling | Nicholaus J. Welle (1900 - 1900) |
| Sibling | Michael John Welle (1901 - 1983) |
| Sibling | Henry Nicholaus Welle (1903 - 1989) |
| Sibling | Alphonse Joseph Welle (1905 - 1970) |
| Sibling | Peter Martin Welle (1906 - 1967) |
| Sibling | Anna Marie Welle (1908 - 1991) |
| Sibling | Pauline Marie Welle (1909 - 2001) |
| Sibling | William Michael Welle (1912 - 1978) |
| Sibling | Hubert John Welle (1915 - 1981) |
| Sibling | Rose Catherine Welle (1916 - 2004) |
| Sibling | Alvina Henrietta Welle (1918 - 2008) |