Johann Heinrich Alt, son of Leonhard Alt & Anna Barbara Kohlhepp, was born 27 September 1734 in Oberzel, Schwarzenfels. He married in Büdingen to Anna Gertruda Vogel, daughter of Johannes Vogel & Gertrudis Dorn. She had been born in Weichersbach, Schwarzenfels, on 29 April 1741.
- Büdingen Parish Records (LDS Intl Film 1197023)
- Oberzell and Weichersbach church records found in Mottgers Parish books by Clem Schreiber of Schluechtern, Hesse, Germany, professional researcher.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 3 (Göttingen: Göttinger Arbeitskreis, 2005).