Heinrich Dirks was my great grandfather's father-in-law after he had married Margarete Dirks. Heinrich Dirks was born and raised in the Mennonite colony in Southern Russia. He was the first missionary to Sumatra, Indonesia. There is a book written about him that is available at Amazon ("Daring the Impossible").
He married Aganeta Schroeder (1844-1911 and they had nine kids. (whew!!):
Elizabeth (1870-1930), Heinrich (1872-1939), Evangeline (1873-1966), David (1874-1926), Maria or Mariechen (1877-1957), Margarete (who married my great grandfather, 1878-1964), Anna (1880-1925), Hans (1884-?), and Herman (1885-1938).
Evangeline, Maria and Margarete eventually emigrated to Canada.
Below are pictures of most of the children of Heinrich and Aganeta Dirks.