 Halverson also was a member of the Board of World Vision, from 1956 to 1983, serving as chairman from 1966 to 1983.He was the President of Concern Ministries, a charitable foundation in Washington, D.C. 

Halverson was married on February 2, 1942 to Doris Grace Seaton (1915-2009) and they had three children.Halverson received the Distinguished Alumnus Award from Valley City State University on May 20, 1977, and an honorary Doctorate of Laws degree from Wheaton College.