Александр В. Чаянов, Александр Н. Челинцев, Николай С. Четвериков, Александр А. Чупров, Александр И. Чупров, Николай Н. Шапошников
The theoretical contribution to the economics and statistics of prominent Russian pre-revolutionary scientists was resurrected and described: A.V. Chayanov, a theorist of zoning A.N. Chelintsev, statisticians N.S. Chetverikoff and A.A. Chuprow, who worked with E.E. Slutsky and N.D. Kondratieff, then striking public figure and educator A.I. Chuprow, at last professor at Moscow State University and the adept of V.K. Dmitrieff' ideas - N.N. Shaposhnikoff. Their intellectual biographies with previously unknown details are given as well.