There are two Kähm families that settled in the Volga German colony of Balzer. The 1767 census does not record their relationship to each other.
(1) Markus Kähm, a farmer, and his wife settled in Balzer on 18 June 1767 and are recorded there on the 1767 census in Household No. 48.
(2) Kaspar Kähm, a farmer, and his wife Eleonora settled in Balzer on 8 August 1767 and are recorded there on the 1767 census in Household No. 93. In 1790, Kaspar Kähm moved from Balzer to Beideck.
The 1767 census records that both of these Kähm families came from the German region of Isenburg.
- 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): Bd77, Bz012, Bz013, Mv0057.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 3 (Göttingen: Göttinger Arbeitskreis, 2005): 85, 101.