Johannes Michael Hainbüchner, son of Lorenz Hainbüchner & Anna Margaretha Kißner, was born 5 May 1741 in Neustadt, a small German village northeast of Höchst im Odenwald. He married in the neighboring village of Sandbach on 21 April 1765 to Anna Margaretha Hegeny, daughter of Johann Georg Hägni & Anna Maria Hamann. She had been born in Neustadt on 13 August 1739. The couple had one daughter, Elisabetha Catharina (born 11 January 1766), who died before they left for Russia.
Johannes Michael and his wife arrived from Lübeck on 29 August 1766 in Oranienbaum, Russia, aboard the ship Appolo. Anna Margaretha evidently died in Oranienbaum because Michael Heinbüchner is recorded travelling alone on the transport from Oranienbaum to the Volga German colonies.
In Frank, Johannes Michael remarried to Anna Maria Weber, the widow of Johann Heinrich Rödiger, with whom he had been travelling between Oranienbaum and Saratov.
They settled in the Volga German colony of Frank on 1 September 1767 and recorded there on the 1767 Census in Household No. 101.
-Gieg, Ella. "Neue Erkenntnisse zur Auswanderung nach Russland 1766."
- Mai, Brent Alan. 1798 Census of the German Colonies along the Volga (Lincoln, NE: American Historical Society of Germans from Russia, 1999): Fk042, Fk089, Fk111, Fk135.
- Mai, Brent Alan, trans. & ed. Transport of the Volga Germans from Oranienbaum to the Colonies on the Volga: 1766-1767 (Lincoln, NE: American Historical Society of Germans from Russia, 1998): 7184, 7450-7459.
- Parish records of Sandbach.
- Parish records of Vielbrunn.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 1 (Göttingen: Göttinger Arbeitskreis, 1999): 435-436.
- Pleve, Igor. Heimbigner Family Chart.
- Pleve, Igor. Lists of Colonists to Russia in 1766: Reports by Ivan Kulberg (Saratov: Saratov State Technical University, 2010): #5037.
- Rauschenbach, Georg. Deutsche Kolonisten auf dem Weg von St. Petersburg nach Saratow: Transportlisten von 1766-1767 (Moscow: G.V. Rauschenbach, 2017): #8298.