According to legend, Oh Henry! was originally named after a boy who frequented the Williamson company, flirting with the girls who made the candy. It is believed that the Oh Henry was invented at the Peerless candy factory in 1919 as the Tom Henry candy bar. It was sold to Williamson Candy Company in 1920 and they changed the name to "Oh Henry!"
The Oh Henry contains peanuts, caramel and fudge, coated i chocolate.