Familie: Robert Helmuth Vennekohl / Minnie Rottmann (F250)
verh. 1 Okt 1891Carl Heinrich Rottmann (1828-1908) |
Hanna Wilhelmina Gentemann (1828-1917) |
| Anna Maria Rottmann (1870- ) |
 | Robert Helmuth Vennekohl (1862-1924) |
 | Minnie Rottmann (1869-1955) 
|
 | Selma Minnie Vennekohl (1893-1971)  |
 | Ester M. Vennekohl (1895-1980) |
| Robert Helmuth Vennekohl (1899-1969) |
 | Carl Herman Vennekohl (1902-1957) |