Josephine Sarah Marcus
A smolderingly good-looking actor born in 1861, Marcus came to Tombstone, Arizona, while touring with a theater group performing Gilbert & Sullivan's HMS Pinafore. She stuck around to marry sheriff John Behan, but when Wyatt Earp showed up, her marriage went cold, and she and Earp reportedly fell in love. This young lady was supposedly the reason behind the famous gunfight at the OK Corral -- a 30-second flurry of gunfire involving Wild West superstars Doc Holliday, the Clayton Brothers, and the Earps. She passed away in 1944 and claimed until her dying day that Wyatt Earp was her one and only true love.