Степанович Фомин was born about 1733. Степанович Фомин's father was Степан Осипович Фомин and his mother was Агафья Ивановна-Фомина. His paternal grandparents are Осип Фомин and <Unknown>. He has three brothers named Андрей, Андреян and Семён. He is the second youngest of the four children.