Ron and Roz Wismer

Proverbs 16:3, “Commit to the Lord…” is a life verse for Ron and Roz Wismer, currently serving in eastern Congo. Ron is the Program Manager for the team in EDRC.

While living in Africa (Zaire/DRC, Central African Republic, Mali), Ron served as a pilot/mechanic and program manager, and Roz had the responsibilities of wife and mother. Whether the task was to inspect and fuel the airplane, instruct a first time passenger on seatbelt usage, load and unload medicines, care for a child, feed unexpected visitors, shop for co-workers, give a shot or clean a wound, or teach Sunday school, both Ron and Roz are motivated to follow and honor God so that all people might have access to the gospel and resources that advance God’s Kingdom.

Ron was raised in a Christian home in Michigan, accepting the Lord at age 10. After two years at Wheaton College, he went on to Moody Aviation and graduated with a BS in Mission Aviation Technology. Ron is a commercial pilot with instrument and multi-engine ratings, plus an aircraft mechanics license (A&P). Ron also received his airplane transport pilot’s (ATP) license. Though he does not fly regularly, he has been known to fill in as a substitute pilot as needs arise.

Roz grew up in Chesterfield, Indiana, and accepted Jesus Christ as her Savior as a child. She attended Taylor University for two years and graduated from Ball State University with a BS in Nursing. She also completed a Master’s Degree from the Alliance Theological Seminary. She and Ron were married in 1984. Verses from the New Testament writings of Paul (Colossians 1:10 & 3:17; Philippians 4:8) and Peter (I Peter 3:15) are challenges as well as guidelines for Roz for everyday living, whether in Africa or America.

Their three sons, Daniel, James, and Mark are following the Lord’s direction in their lives.

God calls the men and women of MAF to serve Him in unique ways. He may also be calling you to a special role in the Wismers’ ministry. Please prayerfully consider becoming a ministry partner with them through prayer and/or financial support.

Country of Service

Map of USA

The U.S. offices of MAF serve as a hub for MAF services worldwide. A day in the life here includes specialized flight training, staff mobilization and counseling, purchasing and shipping of aircraft parts, finance and accounting, administration of an Internet gateway for worldwide email, fund raising, printing and mailing of various materials, and many, many more activities. Some staff serve around the country; training future pilots and mobilizing potential candidates to serve with MAF.

Support Ron and Roz's Ministry


MAF missionaries raise support for a pooled fund out of which MAF covers salary, housing, benefits, and staff-related ministry expenses. MAF exercises discretion over the use of missionary support in the exercise of its mission and care of its staff.

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