Individual Details
Living
( - )
Families
| Father | Alexander Law "Alex" MacArthur (1881 - ) |
| Mother | Mary Ella Hebbard (1888 - 1931) |
| Sibling | Dr. Melville Hebbard MacArthur (1914 - 2016) |
| Sibling | John MacArthur (1918 - ) |
| Sibling | Paul MacArthur (1920 - 2009) |
| Sibling | Dr. Seth MacArthur (1924 - 2022) |
| Sibling | Mary MacArthur (1926 - 2022) |