Question: When did Reuven Feinstein's father die?
Sentence (from "Moshe Feinstein"): Moshe Feinstein or Moses Feinstein ("Moshe Faynshteyn"; March 3, 1895 – March 23, 1986) was an Orthodox rabbi, scholar, and "posek" (authority on "halakha"—Jewish law), regarded by many as the "de facto" supreme "halakhic" authority for observant Jews in North America.
Relevant evidence: Yes