The biographies of five graduates of the Mining Institute in the 19th-20th centuries are considered: N.P. Vollendorf, A.G. Redko, A.F. Hartman, V.P. Smirnov and P.V. Latyshev. All of them worked at the St. Petersburg Mint, improving their theoretical and practical skills and left a noticeable trace in the annals of the factory. Three of them were the heads of the Mint