Decareau also was charter member of Phi Tau Sigma while pursuing his Ph.D. at the University of Massachusetts Amherst.
[1] After graduating in 1943, he enlisted in the US Navy, serving aboard the USS Randolph aircraft carrier as an anti-aircraft gunner.
[1] After earning his master's degree, Decareau was commissioned as a First Lieutenant in the US Army during the Korean War, though he was stationed in Linz, Austria.
[1] Decareau moved back to Natick, Massachusetts later in his career to work in research and development at the United States Army Soldier Systems Center to develop food processing techniques for military and space exploration applications.
[1] He was involved in his church in Milford, New Hampshire and enjoyed classical music, chess, and the Boston Red Sox.