Father Joseph Kruschinsky was born in 1865 in Lewjanowo in the Mariupol district. He served the parish of Mariental from 1896 to about 1898.
He was convicted on 31 July 1940 and his exact fate is unknown.
- Obholz, Albert. "The Clerics in Mariental on the Volga." Volk auf dem Weg (June 2009): 46.