General Custer was another guy who grew up with war ingrained in his DNA. It's unverified, but many believe actual gunpowder coursed through his angry veins, and that he was born with that magnificent handlebar mustache.
He kicked all levels of ass throughout the Civil War, including two big wins at the First Battle of Bull Run and the Appomattox Campaign. He eventually got to hang out and watch Confederate General Robert E. Lee surrender once and for all.
When General Custer was finally killed at the Battle of Little Bighorn, he died with every last one of his men, and despite conflicting accounts of how he died or who actually killed him, it is not disputed that he went down fighting. Mustache perfectly groomed.