Roy J. Hendricks, 68, a retired Air Force colonel whose last assignment was as director of acquisition contracts and manufacturing for the Air Force Logistics Command, died of congestive heart failure Jan. 19 at Walter Reed Army Medical Center. He lived in Fairfax County.

He served in the Air Force for 28 years before retiring from active duty in 1984. He was a navigator in Vietnam and a missile launch officer and personnel staff director in U.S. assignments. He also was posted to Japan. He worked for the Census Bureau's finance division after retiring from the Air Force.

Col. Hendricks was a native of Oakland, Calif., and received a degree in music education and voice from San Jose State University. He received master's degrees in management and business administration from the University of Missouri.

He also was a professional tenor who sang for churches that included Messiah United Methodist Church in Springfield. At Aldersgate United Methodist Church in Alexandria, he was director of the handbell choir, assistant director of the Men of Note and lead tenor in the Wesley Choir.

He sang and acted in theater productions at Aldersgate as well. He was a member of the Retired Officers Association.

His military honors included the Legion of Merit, Distinguished Flying Cross, Defense Meritorious Service Medal and Meritorious Service Medal, three Air medals and two Air Force Commendation medals.

His marriage to Judy Hendricks ended in divorce.

Survivors include his wife of 24 years, Barbara Hendricks of Fairfax County; three children from his first marriage, Kirk Hendricks and Ryan Hendricks, both of Hayward, Calif., and Debby Hendricks of San Leandro, Calif.; three stepchildren, Jeffrey Pardo of Halifax, Mass., Jonathan Pardo of Madison, Conn., and Kimberly Pardo, a civilian teacher at the American dependents school at Incerlik Air Base in Turkey; and four grandchildren.