Individual Details
John de Block Sr
( - )
Families
| Spouse | Antje "Anna/Annie" Zuidema (1898 - ) |
| Child | Sydney DeBlock (1922 - 1980) |
| Child | John DeBlock Jr. (1924 - 2013) |
| Child | Peter DeBlock (1918 - 2008) |
| Child | Nicholas de Block (1920 - 1988) |
( - )
| Spouse | Antje "Anna/Annie" Zuidema (1898 - ) |
| Child | Sydney DeBlock (1922 - 1980) |
| Child | John DeBlock Jr. (1924 - 2013) |
| Child | Peter DeBlock (1918 - 2008) |
| Child | Nicholas de Block (1920 - 1988) |