Bernhard Deggeler was born 27 April 1822 in Schaffhausen, Switzerland, and died 7 October 1888 in Grimm. He served in the Pyatigorsk parish in the North Caucasus from 1860-1873, which included the colony of Karras which had been settled by German colonists from the Volga. He served in Grimm from 1873 until his death in 1888. Pastor Bernhard Deggeler is the father of Pastor Eugen Deggeler.
- Schnurr, Joseph. Die Kirchen und das religiöse Leben der Russlanddeutschen – Evangelischer Teil (Stuttgart: AER Verlag Landsmannschaft der Deutschen aus Rußland, 1978): 130.