| Father | Antonie Muilenburg (1830 - 1926) |
| Mother | Geertrudia Rempe (1851 - 1895) |
| Sibling | John A. Muilenburg (1870 - 1952) |
| Sibling | Elizabeth Muilenburg (1882 - 1971) |
| Sibling | Peter A. Muilenburg (1879 - 1963) |
| Sibling | Maria Muilenburg (1885 - 1952) |
| Sibling | Cornelius A. Muilenburg (1876 - 1969) |
| Sibling | John Henry Muilenburg (1872 - 1955) |
| Sibling | Garrett A. Muilenburg MD (1889 - 1968) |
| Sibling | Adrianna Jennie Muilenburg (1867 - 1937) |
| Sibling | Cornelia W. Muilenburg (1892 - 1979) |
| Sibling | Feuntje Muilenburg (1865 - 1952) |
| Sibling | Emma Muilenburg (1863 - 1952) |