| Father | Peter J. Lahr (1887 - 1964) |
| Mother | Elizabeth Kinzer (1887 - 1962) |
| Sibling | Elizabeth Lahr (1904 - 1993) |
| Sibling | George Lahr (1909 - 1985) |
| Sibling | Herbert J. Lahr (1910 - 1997) |
| Sibling | Alquin Lahr (1912 - 1973) |
| Sibling | Ralph Lahr (1912 - 2002) |
| Sibling | Marie Eleanor Lahr (1915 - 2001) |
| Sibling | Peter A. Lahr (1916 - 1985) |
| Sibling | Leander Lahr (1919 - 1986) |
| Sibling | Frank M. Lahr |
| Sibling | Lorraine Lahr (1923 - 2002) |
| Sibling | Raynold Lahr (1924 - 1995) |
| Sibling | Isabelle Lahr (1926 - 2001) |
| Sibling | Ovide Lahr (1929 - 1986) |
| Sibling | Aurelia M. Lahr |