| Father | Andreas Frederick Martin "Andrew F M" Caspers (1853 - 1944) |
| Mother | Henrietta Wilhelmina "Jetta, Hattie" Husmann (1862 - 1941) |
| Sibling | Peter Martin Caspers (1885 - 1977) |
| Sibling | Herman Friedrich "Fritz" Caspers (1886 - 1957) |
| Sibling | John Gerhard Caspers (1889 - 1958) |
| Sibling | Katherine Paulsen "Katie" Caspers (1891 - 1981) |
| Sibling | Tobe Thedor Caspers (1893 - 1969) |
| Sibling | Anna Frances "Annie" Caspers (1898 - 1957) |
| Sibling | Frederick M "Fred" Caspers (1900 - ) |
| Sibling | Carl Frederick Caspers (1902 - 1955) |
| Sibling | Margaret A "Lena" Caspers (1904 - 1999) |
| Sibling | Margaret Marie "Maggie" Caspers (1908 - 2010) |