Andreas Klapp, a single farmer, arrived from Lübeck at the port of Oranienbaum on 4 July 1766 aboard the English frigate Love & Unity under the command of Skipper Thomas Fairfax.
He settled in the Volga German colony of Messer on 18 June 1767. He married widow Anna Katharina Schmidt, and they are recorded there on the 1767 census in Household No. 61, along with her son Peter Schmidt.
The death of Andreas Klapp in 1816 is recorded on the 1834 census of Messer in Household No. 13.
The 1767 census records that Andreas Klapp came from the German district of Isenburg.
There are no known surviving male lines of this family among the Volga German colonies.
- 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): Ms09.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 3 (Göttingen: Göttinger Arbeitskreis, 2005): 146.
- Pleve, Igor. Lists of Colonists to Russia in 1766: Reports by Ivan Kulberg (Saratov: Saratov State Technical University, 2010): #1821.