Aside from 'kid' stories, Shep used to tell a lot of stories about being in the Army. He would often kid about being in the mess kit repair battalion, but he was really in the signal corps which was the basis for most of the stories.
He was in the service from July 20, 1942 to December 16, 1944 achieving the grade of T-5.
In the 'official' Army photo he is seen wearing the Signal Corps brass lapel pin, a Marksman medal (Rifle?), the Army Service Forces arm patch and what appears to be a Good Conduct Ribbon.
From what is known he never went overseas spending a large amount of time in Florida at Camp Murphy after completing Signal Corps training at Camp Crowder.
At Camp Murphy he worked with a radar unit, probably the 801st Signal Training Regiment. He claims to have worked with the SC 268R Radar unit.
When Camp Murphy was deactivated, in early to mid 1944 he still had time left and quite possibly was trasferred to Ft Monmouth, another source of many stories.