Klaus Mehnert (1906-1984) was a journalist and author who spent time as a correspondent in the USSR and China before becoming an advisor to the German government on Sino-Russian affairs. Mehnert's letters are addressed to Anna Peturnig, the name Markstein used when she was translating Solzhenitsyn's Gulag Archipelago.

Aleksei Vasilevich Mikheev is a Russian writer, journalist, and editor.

James R. Miller was the editor of Slavic Review.

Markstein's reply is printed on the back of Mir's letter of June 25, 1999.

Boris Iakovlevich Misonzhnikov is a professor of philology at St. Petersburg State U.

Sidney Monas (b. 1924) is a U. of Texas professor emeritus in the departments of history and Slavic languages. He was instrumental in bringing Markstein to the UT-Austin as a guest lecturer in 1975-1976.