Johann Konrad Bär was born in Nidda, Hessen, Germany. He married Anna Katharina Erck, daughter of Johann Christoph Erck & Anna Margaretha Runck. She was born 26 December 1721 in Nidda. They, two daughters, and Anna Katharina's father arrived on 15 September 1766 in Oranienbaum. The Bär family settled in Yagodnaya-Polyana where they are listed on the 1767 Census while Anna Katharina's father settled in Frank.
Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 2 (Göttingen: Göttinger Arbeitskreis, 2005).
Pleve, Igor. Lists of Colonists to Russia in 1766: Reports by Ivan Kulberg (Saratov: Saratov State Technical University, 2010): 399.