He was born in Poland. One of the younger critics, in the early 1920s he published work in Vaysenberg’s journal, Undzer hofenung (Our hope), on P. Markish, L. Kvitko, Ozer Varshavski, Naftali Gros, Avrom Eyzn, and others. He also published in Oyfkum (Arise) in Sighetu Marmației and in Di vokh (The week) in Bucharest. He was murdered by the Nazis. Among his pseudonyms: Robert Merison, Merisman, R. M., and R. M-n.