The Reverend Samuel Theophil Bonwetsch is the son of Pastor Christoph Heinrich Bonwetsch and Beate Christiana Friedrich. He was born 4 September 1832 in Katharinenfeld (Caucasus) and died 26 April 1914. He served in Galka from 1858-1874; in Fresental from 1875 to 1876, and in Kursk from 1876-1906.
He married in Yagodnaya Polyana on 10 December 1857 to Marie Eugenie Hegele, daughter of Pastor Christian Gottlieb Hegele & Nancy Galloway. Eugenie was born in Beideck on 4 December 1839 and died 30 May 1910.
Amburger, Erik. Die Pastoren der evangelischen Kirchen Rußlands (Lüneburg, Germany: Institut Nordostdeutsches Kulturwerk, 1998).
Schnurr, Joseph. Die Kirchen und das religiöse Leben der Russlanddeutschen – Evangelischer Teil (Stuttgart: AER).