One of the founders of the national cello school. Professor at the Moscow Conservatory since 1922.
Wife - Nadezhda Nikolaevna Kozolupova (née Fedotova, 1886-1957), taught piano at the Moscow Conservatory.
All three of their daughters also became musicians and teachers at the Moscow Conservatory: pianist Irina Kozolupova = Ирина Козолупова (1910-1993), cellist Galina Kozolupova = Галина Козолупова (1912-1991) and violinist Marina Kozolupova = Марина Козолупова (1918-1978).