Re-reading "The First Fast Draw". LL has Cullen mention Samuel Colt inventing the "first successful repeating pistol". LL puts it that Colt designed the .45 for the Texas Rangers by order of Samuel H. Walker. Out of my interest and curiosity about historical figures that LL mentions, I looked up Walker. According to the Texas DPS website, Walker made suggestions to improve the pistol which Colt accepted. And, the pistol became known as the Walker Colt. The Rangers used the pistol very effectively. The Texas DPS likens the effect of the invention of the Walker Colt on the frontier as the equivalent of a nuclear bomb. An interesting note is that Walker joined one of several Ranger companies that took part in the 1846 war with Mexico. The Rangers were so dangerous that they became known as "Los Diablos Tejanos" or the Texas Devils. Alas for Walker, it was the end of the line as he was killed in action during the war.
