Father Dobrowolsky was born on 8 August 1854 in Mariental in the Odessa District. He died on 31 December 1934 in Mannheim. He was ordained on 4 September 1877. His first parish was Rohleder, where he served from 1877 to 1879. From 1879 to 1899, he was parish priest in Landau. From 1899 to 1901, he served in Mariental (Volga). From 25 September 1901 to 22 November 1903, he was parish priest and deacon in Mannheim.
- Schnurr, Joseph. Die Kirchen und das Religiöse Leben der Russlanddeutschen - Katholischer Teil (Stuttgart, 1980), p. 339.