It only stands to reason the officer corps of the U.S. military was considerably younger in WWII than is true today. We quickly geared up a huge military after the Pearl Harbor attack and a lot of young officers were commissioned to positions of authority and promoted quickly out of necessity. Officers have historically been promoted quickly in times of major wars.
Agree. Young officers was a product of both rapid expansion of the military at the start of WWII and later as a result of battlefield attrition.