Philip David Sang was born November 27, 1902, in Chicago. He received a bachelor's of science degree in mechanical engineering from the Illinois Institute of Technology in 1923. He married Elsie Olin the same year.
In addition to being president of Goldenrod Ice Cream Company of Chicago, Sang was treasurer for the wholesale drug firm Humiston-Keeling and Co. He served on several boards of directors and governors, including the Automatic Retailers of America, the Jewish Federation of Metropolitan Chicago, the Israel Weitzman Institute, and Hebrew Union College. He also acted as president of the American Jewish Historical Society and the Society of Jewish Bibliophiles, and vice-president of the Jewish Publication Society of America.
Sang was a founding member the Brandeis Bibliophiles and received honorary degrees from several institutions, including Lincoln College, the University of Kentucky, and Rutgers University. He died in Chicago on May 16, 1975.