The Simon and Kirby Library: Crime | HardcoverSeries: Simon and Kirby Library The creators of Captain America and the Boy Commandos produced some of the hardest hitting crime comics of the 1950s. Often featuring real world criminals like Ma Barker, Al Capone, and Pretty Boy Floyd, and true to life events like the St. Valentine's Day Massacre, these adventures were torn from post prohibition headlines. Explosive enough to draw the attention of the congressional committee on juvenile delinquency,