Widow Margaretha LeBlanc is recorded on the 1798 census of Franzosen in Household No. Fz46. It is believed that the Peter LeBlanc recorded on the 1798 census of Grimm in Household No. Gm180 is her son.
The LeBlanc family has not been located on the 1767 census.
- 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): Fz46, Gm180.