Born approximately in 1866 in Bialystok, Poland, Wilensky’s parents were merchants who gave their son Bernard a traditional Jewish education. His teacher was Sh. Yanovsky. 

Wilensky traveled to London and became an actor in the Yiddish theatre there. Due to the fact that he could both read and write Yiddish so well, Adler hired him as a prompter.

After his marriage in Warsaw to the actress Mary Katz, Wilensky traveled to America where he worked as a prompter in leading Yiddish theatres. Moreover, he proof read and edited plays at the People’s Theatre and also took part in directing some occasional  plays.

Wilensky wrote “Mary the Shoemaker” (Meri di shusterke), a loosely rewritten work based upon the German farce “Three Pairs of Shoes”.  This was performed at the Thalia Theatre starring Mary Wilensky and Moshkovitsh as leading actors. Later he presented the play “The Smart Woman” (Di kluge froy”) in Europe (a remake of Fuldes “Twin Sisters”) which was staged in the Thalia Theatre with Mary Wilensky, Moshkovitsh and Mogulesko in the starring roles.

Yankev Gordin dedicated a special article in his writings to Wilensky.

Wilensky died on April 23, 1922 in New York City.

Mary Wilensky - Memoirs.

Yankev Gordin -Thoughts about a Prompter (Alle Shriften), New York 1910 4 Volume, pages 172-175.