Lowell was inducted into the U.S. Army in November 1966. He took his basic training at Fort Bliss, Texas, and Advanced Infantry Training at Fort Polk, Louisiana. He served in Vietnam from April 1967 to April 1968 with the 1st Calvary Division (Airmobile) Company C, 2nd Battalion, 5th Calvary. SP4 Stammer received the Combat Infantry Badge and Air Medal. He was discharged November 1968 and lives with his wife Connie in Carroll, Iowa.