Rabbi Dr. Karl Applbaum (1910-1974), was the founder and associate rabbi of the Avenue M Jewish Center, Brooklyn. In 1945, was on the faculty of Mesifta Talmudical Seminary, Hebrew Parochial High School in Brooklyn, New York, teaching Social Science. He served as a chaplain in the Army until his retirement from the active reserve as a full colonel in 1970. He wrote Laws Governing the Reading of the Torah, Prophets, and Megillos Esther in the Synagogue, published in the Tiqun La-Qor'im he-Ḥadash (Rabbi Asher Scharfstein, 1950).