Bob Oscar (B.O.) Plenty was one of eight sons (and at least one daughter) in a very close-knit Ohio family. He is a thin man with wary black hair. He often wears an unkempt beard, though he has shaved it from time to time. he habitually wears a pit helmet, a vest, and sleeve garters. In early appearances, he was frequently shown chewing tobacco. B.O. eventually came to own a farm, where he lived and worked for thirty years. His farm was near the town of Tinyville.