Born: June 5, 1829, Rogoźno (Rogasen), Grand Duchy of Posen.
Died: October 13, 1903, Germantown, Philadelphia, Pennsylvania.
Buried: Harrowgate Cemetery, Philadelphia, Pennsylvania. An article in The Jewish Messenger, October 9, 1896, stated this was the cemetery of the Rodef Sholom [sic] congregation, and was located at Kensington and Erie Avenues in Philadelphia.
Marcus was the son of Abraham Jastrow and Yetta (Henrietta) Rolle, and husband of Bertha J. Wolfsohn.
After receiving rabbinical ordination, PhD, and a Doctorate of Letters, he became rabbi of the then Orthodox Congregation Rodeph Shalom in Philadelphia, Pennsylvania, in 1866.
In 1886, he began publishing his magnum opus, A Dictionary of the Targumim, Talmud Babli, Talmud Yerushalmi and Midrashic Literature, in pamphlet form. It was finally completed and published in two-volume form in 1903, and is a popular resource for students of the Talmud.
Jastrow was also responsible for most Talmud-related articles in the Jewish Encyclopedia.
If you know the GPS coordinates for Harrowgate Cemetery,