NGV Stambomenverzameling
Gezin: Levend / Johanna Calis (F28475)
Jacobus Hermanus Markhorst (1885-1975) 
|
Christina Anna Maria Haeren, van (1888-1988)
|
Johanna Markhorst (1916-2000)  |
| Johannes Jacobus Markhorst (1918- ) |
| Wilhelmina Christina Markhorst (1921-1971) |
| Theodora Christina Markhorst (1924-1945) |
| Markhorst (1931-1931) |
| Johanna Calis (1916-1985) |