Bill Calhoun

Bill Calhoun was a physician of the Followers of the Apocalypse.

Background
Bill Calhoun and Edward Sallow were sent east by the Followers of the Apocalypse to study tribal dialects. They met a Mormon missionary named Joshua Graham who already knew the languages, and together embarked on a journey to the region known formerly as Arizona.

At some point in 2247, Graham, Calhoun, and Sallow were captured by the Blackfoot tribe and were held for ransom. At the time the tribe was at war with seven other tribes, a war they were inevitably going to lose. Unwilling to be destroyed along with them, Calhoun's partner Sallow chose to use his knowledge to train the Blackfoot tribe in the art of warfare despite Bill's objections. He quickly impressed them enough to the point where he was made their leader, conquering other nearby tribes. The Courier: "Why would learning dialects be a waste of time?" Caesar: "If you think it's worthwhile to make smart people learn how to talk like backward savages, you're a Follower of the Apocalypse... or an idiot. Anyway, we met up with a Mormon missionary who already knew a bunch of dialects - Joshua Graham. He was supposed to teach me. But before that went too far, the Blackfoot tribe captured us, to hold us for ransom. They were a backward bunch. But the real problem was, they didn't know how to fight." The Courier: "What was wrong with the Blackfoot?" Caesar: "The Blackfoot were at war with seven other tribes, each just as pissant as they were. But outnumbered like that, they weren't going to last long. It's one thing to be taken hostage, another to be lashed to a sinking ship. So over Calhoun's objections, I decided to take certain steps." The Courier: "What steps did you take?" Caesar: "I taught them how to use the guns they already had - how to strip and clean them, how to breathe when pulling a trigger, how to reload ammunition. They looked at me like I was some kind of a sorcerer. So I taught them how to make explosives, and started drilling them on small unit tactics. If there's anything I learned as a Follower of the Apocalypse, it's that there's a lot of good information in old books." The Courier: "What happened after you trained the Blackfoot?" Caesar: "Divide et impera - divide and conquer. I led the Blackfoot against the Ridgers, their weakest enemy. When they refused to surrender, I ordered every man, woman, and child killed. When next we surrounded the Kaibabs and they likewise refused... I took one of their envoys to the Ridgers' village and showed him the corpse piles. This was new for the tribes, you see. They played at war, raiding each other, a little rape and pillage here, a little ransoming there. I showed them total warfare. Like I said, there's a lot you can learn from old books." (Caesar's dialogue)

When Sallow officially formed the Legion and crowned himself Caesar, Bill was sent back to the Followers to inform them of the events, and with a warning not to interfere.

Appearances
Bill Calhoun is mentioned in Fallout: New Vegas and his full name is given in the add-on Honest Hearts.