The Rev. Karl Zimmer was born 7 January 1863 in Mirau (Kurland), and died on 19 October 1939 in Rohr b. Stuttgart (Germany). He was ordained on 10 July 1890 and served congregations in Elisabethtal (Caucasus) (1892-1904), Riebensdorf (1904-1908), Schöntal (1908-1911), Paulskaya (1911-1920), and Alexeyevka (Caucasus) (1921-1925). In 1925, he moved to Germany.
Pastor Karl Zimmer is the father of The Rev. Wilhelm Zimmer.
- Schnurr, Joseph. Die Kirchen und das religiöse Leben der Russlanddeutschen – Evangelischer Teil (Stuttgart: AER Verlag Landsmannschaft der Deutschen aus Rußland, 1978): 182, 197.