Russell Johnson was in fact a USAAF bombardier in WWII. Exact details are hard to come by - like most of his generation, he didn't talk much about his service - but he was shot down in a B-24 and earned, it seems, one or more Air Medals, a Purple Heart, and possibly a Bronze Star. You are fondly remembered, Lieutenant. Rest in peace.
http://www.nytimes.com/2014/01/17/ar...ref=television