From 1906 to 1911 Alexander Fomin studied at Saint Petersburg University.
Alexander Fomin taught at the universities of Saint Petersburg. He is a compiler of various bibliographic reviews and indexes devoted mainly to Russian writers of the XIX - early XX century. Alexander Fomin showed great interest in the creative heritage of A.V. Koltsov and especially I. S. Nikitin.
Alexander Fomin prepared the complete works of I. S. Nikitin; in order to collect materials about the poet, he came to Voronezh in February 1911 and stayed at Kravtsova-Blummer's. From 1911 till 1917 he corresponded with A.N. Vasiliev.