Fradkin was born to Jewish parents in Manhattan on February 28, 1935. His father, Leon Fradkin, was a dentist who had emigrated from the Russian Empire, and his mother, Elvira (nee Kush), was a writer and activist for nuclear disarmament and women's rights. Fradkin grew up in Montclair, New Jersey, where he attended Montclair Kimberley Academy, graduating in the class of 1953. When he was 14 years old, his father took him on an extended road trip through the Western United States. He fell in love with the American West, and subsequently moved to California in 1960.
1234Yardley, William. "Philip Fradkin, Writer Who Explored Themes of the West, Dies at 77", July 14, 2012.The New York Times, July 14, 2012. Accessed December 3, 2017. "Philip Lawrence Fradkin was born in Manhattan on Feb. 28, 1935. He grew up in Montclair, N.J., the son of Dr. Leon H. Fradkin, a dentist who had migrated from Russia, and Elvira Kush, an activist who wrote and advocated for disarmament and women’s rights."