Mack and Joan have served with Missions Door since 1972 and are committed to reaching African American communities in Chicago. After Mack attended Trinity Evangelical Divinity School in Deerfield, Illinois, he and Joan moved to Chicago’s West Side and began attending Keystone Baptist Church in 1969.
With support from local churches and a strong leadership staff, Mack and Joan have pioneered Sankofa Student Ministries in Chicago. This ministry continues to reach students with the Gospel on campuses including DePaul University, Illinois Institute of Technology, and other Chicago-area colleges.
Mack committed his life to Jesus Christ during his freshman year at Ohio State University and Joan accepted Christ as her Savior in the fifth grade. She surrendered her life to the Lord’s service while attending Ohio State University.
Mack and Joan were married in 1967 and have two grown children: Kirstin and Eric.