Guillermo Jones started out as a 6' 4" welter. But nowadays we all know that he used fishy methods to make that weight.
Santiago Caballero was a 5′ 11″ / 180 cms superbantamweight, probably the tallest man to fight at world level in such a low division
He fought at 154 for the better part of his career. Jeffrey Mathebula was a 5´11 super bantamweight Masamori Tokuyama at 5´7 was pretty tall for a super flyweight.