Elder Sandage was born March 11, 1922 at Bee Branch, Arkansas in Van Buren County. In 1925, his family moved to Hot Spring County, Donaldson, Arkansas where Elder Sandage still lives. In 1940, when Elder Sandage was eighteen years old, he joined the Harmony Church in Donaldson. He as the last person bapzed by his future father-in-law, Elder W. H. Lee.

In 1942, Elder Sandage married Virgie Mae Lee, Elder Lee's youngest daughter. The Lord blessed the Sandages with two sons: Charles Lee, born March 1943, and David Barry, born January 1957. Elder Sandage served in the U.S. Air Force from October 1942 until December 1945. Elder Sandage was ordained as a deacon in February 1948 and made his first effort to speak to the church in 1949. In August of 1953, Elder Sandage was ordained to the ministry. He was called to pastor every church that his father-in-law, Elder W. H. Lee, had pastored in his lifetime, one being his home church at Donaldson. In 1965 the church at Donaldson went to full time services and called Elder Sandage to serve them, which he did until 1995. Elder Sandage resigned at Donaldson and moved his membership to Mt. Paron Church near Fordyce where he still serves as pastor.