M. was born on 25 November 1896 in Warsaw, Poland. His grandfather was a rabbi, his father a lumber merchant, a Chasid, a Kabbalist. He learned in cheders and yeshivas, and bngbh secular studies. First after his mother's passing (1921), M. was introduced in a adjoining coffee house to a group of "amateurs," for whom he prompted for a play.

In 1913 he became a professional actor and prompter in the provincial troupe under the direction of Reyf, with whom he toured for two years. In 1915-16 he was engaged in Warsaw's "Venus" Theatre (Dir.: H. Zlotshevsky). In 1917-18 he toured across Poland as an actor and prompter with Hymie and Anna Jacobovitsh. In 1919-20 he was with a member's troupe. In 1921-22 he was an association representative in Vilna troupes. In 1923 he was with Molly Picon in Warsaw, where he remained to work in the years 1924-27 in various Yiddish troupes. In 1928 he was in a tour with Lidia Potocka and since 1929 again in Warsaw. From 1927-31 M. was a management secretary for the Yiddish Artists' Union in Poland.

M. gave to be published a range of acted plays from various authors (without their consent or knowledge). Two of those plays: [L. Freiman and S.H. Kon's] "Tsipke feyer", a comedy in 4 acts with singing (Warsaw 1925) and [William Siegel's] "Vu zaynen meyne kinder?", a melodrama in 4 acts (Warsaw 1926), were, without the name of the author, published under his name as editor.