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Born Pauline Finkelstein, in Iasi, Romania on February 10, 1866 and died September 27, 1942 in Manhattan, New York. Her father was a "cutter" by profession.
She learned in a "primary school" with her sister Amalia. Amalia married actor Zigmund Mogulesko. Through her affiliation with her sister she entered the chorus of Mugulesko-Goldfaden's troupes in Romania and Russia. In Russia she acted as "Genendl" in Shom'r's "Der Katorzhnik" and as "Tamar" in Joseph Lateiner's "Di libe fun tzion".
In 1886 she emigrated to American with her husband and continued to act in Yiddish theatre mainly under the direction of her husband, Joseph Edelstein. She acted in character roles and was the first to act in the role of "Mishka" in Lateiner's operetta "Miskha and Moshka", and in Jacob Gordin's (1853-1909) plays: "Froy rozenkrants" in "Siberia" on November 13, 1891 in the Union Theatre[disambiguation needed]; "Zelda" in "Der vilder mentsh" on November 4, 1893 in the Windsor Theatre, as "Madam Zhamanuli" in "Devorahle myukhst" in 1893; and as "Freyde henye" in "Dovidl mshurr" in 1899.
Both of her sisters, Amalia Mogulesko and Ernestine (Esther Finkelstein), for a short time acted on the Yiddish stage. Her son, Isidore Edelstein married Annie Thomashefsky, sister of Boris Thomashefsky.