Technically it could have al worked had they placed him in WWII. There were certainly 20 year olds in WWII, but then there were also 26 year olds in Korea, so Matt is correct, I'm just wondering about the very tight timeline between the Korean War and the premiere of the show in 1960. Don was already Creative Director at that time and pretty much one of the most senior positions, not counting partners.

In the show I know they've mentioned Korea a number of times so it's also not an issue of where he was. They haven't mentioned specifically that it was the Korean War that I recall - that's what prompted this whole line of thought. That and I thought I'd read the date 1944 on screen.