Age 82, Lawton - Services will be 12:30 PM Tuesday at the Becker Funeral Home Memorial Chapel. Sergeant Major Callahan died Thursday in Lawton. Burial with full military honors will be in Fort Sill National Cemetery, Elgin. He was born April 4, 1927 in Coyville, Kansas to Austin and Anna (Lansberry) Callahan. He married Evelyn May Backhaus on August 9, 1951 in Independence, Kansas. Sergeant Major Callahan served in the Korean War and the Vietnam War. He received the Soldier's Medal and the Legion of Merit. He retired after thirty three years of service. He was a lifetime member of VFW Post 5263. Survivors include his wife, of the home, son, COL (Ret) Terry Callahan and his wife Sueann, Grand Blanc, Michigan, daughter, Deborah Perkins and her husband Dennis, Kansas City, Missouri, six grandchildren and their spouses, SSG Jonathan and Sarah Callahan, Germany, Julie and Allen Schneider, Burlington, Kansas, David and Alexis Perkins, Kansas City, Theresa Perkins, Kansas City, Connor Callahan, Daytona Beach, Florida and Katherine Callahan, Grand Blanc, and six great grandchildren, Braden, Emily, Jordan, Bailey, Ian and Justin. He is preceded in death by two sons, SGT Ronald Callahan and Dick Callahan, his parents, a sister, Doris and two brothers, Don and Max. Memorial contributions may be made to the American Cancer Society, 1320 N.W. Homestead Dr., Suite D, Lawton, OK 73505.