Edwin Harry Zackrison (1941—) was born in Hinsdale, Illinois. He was ordained to the Christian ministry in 1969. He received a BA (1963) at Loma Linda University, an MA (1964) and BD (1966) from Seventh-day Adventist Theological Seminary, and a PhD (1984) in Theological Studies and Developmental Psychology at Andrews University. He received an MBA from Keller Graduate School of Management (2001). After pastoring for twelve years and teaching at high school, college and university levels for forty-five years, he is retired and writes from Ringgold, GA.