Jim Crumpacker, and wife Karen, gained their first foreign missionary experience as Associates In Missions in Kenya in 1982. The Foreign Missions Board then asked Brother Crumpacker to serve as the acting field superintendent in Malawi.
The Crumpackers received their full missionary appointment in October 1984. As the field superintendent of the UPC of Malawi, Brother Crumpacker oversaw the total church structure, pastors, training ministers, and supervising the building of country churches. In his additional role as a missionary to Mozambique, Brother Crumpacker made periodic trips to help the developing church in a nation still recovering from years of civil war.

in 2003, after twenty years in Malawi,  the Crumpackers returned to Kenya leaving behind their beloved Malawi and returning to where their missionary service began.  In Kenya Bro. Crumpacker holds the position of Missionary Director. He serves on the National Board and assists the Kenyan church in training and evangelism. Bro. Crumpacker also serves as Area Coordinator over the 13 countries of East Africa. Five of these nations have resident missionaries and 8 do not.

The Crumpackers have one son, Jason and daughter-in-law, Jill, living in Indianapolis, Indiana. As an adult, Jason has returned to Africa twice, for 10 month increments on AIM assignments, helping with building projects and to teach in the Bible School.

After 22 years of missionary service and seeing ten's of thousands receive the Holy Ghost there still burns a strong desire to see revival come in a greater measure.  Kenya, and all of East Africa, need the only saving message of Acts 2:38.