Widow Anna Katharina Zimmer and her sons (Johann Adam, age 18; Konrad, age 16) arrived from Lübeck at the port of Oranienbaum on 8 August 1766 aboard a pink under the command of Lieutenant Moisey Davydov.
Anna Katharina remarried to Konrad Felsinger and settled in the Volga German colony of Krasnoyar on 20 July 1767 and is recorded there on the 1767 census in Household No. 109 along with her sons.
Adam Zimmer is recorded on the 1798 census of Krasnoyar in Household No. Ks107 along with a note that he is working in Katharinenstadt.
The death of Adam Zimmer in 1825 is recorded on the 1834 census of Hummel in Household No. 41.
The Oranienbaum passenger list records that Anna Katharina Zimmer came from the German region of Isenburg. The 1767 census records that Katharina Zimmer and her sons came from the German village of Meerholz in the Isenburg area.
- 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): Ks107.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 2 (Göttingen: Göttinger Arbeitskreis, 2001): 437.
- Pleve, Igor. Lists of Colonists to Russia in 1766: Reports by Ivan Kulberg (Saratov: Saratov State Technical University, 2010): #4147.