Philipp Marker and his family are recorded on the 1798 census of Hussenbach in Household No. Hs109.
Other Marker families, presumed to also be his descendants, are recorded in Households No. Hs090, Hs103, and Hs110.
- Mai, Brent Alan. 1798 Census of the German Colonies along the Volga: Economy, Population, and Agriculture (Lincoln, NE: American Historical Society of Germans from Russia, 1999): Hs090, Hs103, Hs109, Hs110.