found: Brown, S.R. Proclaim liberty, c1976:t.p. (Rabbi David Saperstein)
found: Wikipedia, July 19, 2018(David Saperstein (rabbi); David Nathan Saperstein; born August 5, 1947, New York City; American rabbi, lawyer, Jewish community leader; former United States Ambassador-at-Large for International Religious Freedom; served as the director and chief legal counsel at the Union for Reform Judaism's Religious Action Center for more than 30 years)
found: YouTube, July 19, 2018(Rabbi David Saperstein; director, Religious Action Center of Reform Judaism; "Being the hands of God: a Jewish perspective on America's social justice agenda"; lecture published by University of California Television, May 28, 2010)
found: Google Books, July 19, 2018(Jewish dimensions of social justice / Albert Vorspan, David Saperstein; UACH Press, 1988; Rabbi David Saperstein has served as the director of the Religious Action Center for [sic] Reform Judaism for over thirty years. He co-chairs the Coalition to Preserve Religious Liberty and serves on the boards of numerous national organizations, including the NAACP and People for the American Way. In 1999, Saperstein was elected as the first chair of the U.S. Commission on International Religious Freedom.)
found: Email from Jenna Galper, Religious Action Center of Reform Judaism, July 24, 2018(confirms Saperstein as author of Proclaim liberty)
notfound: Contemporary authors online, July 19, 2018 (incorrectly listed under David Saperstein, born 1937)