If your library can help you find a microfilm copy, you probably will be interested in the The _Washington Post_ for Nov 9, 1948, pg. 2. There is a photo of Stevenson there -- the caption will explain it:
"RECRUITING STATION -- An added attraction in the Army recruiting booth, which opened yesterday on 14th st., between New York ave. and H st. is Corpl. Alwyn Stevenson (left), a magician. Yesterday he and Sergt. Michael Pennella (center) puzzled R. F. Amster of Mount Ranier, Md., with card tricks."