Asa Bamford and his brother George were southern outlaws in the 1860s. His brother led the accosting of the Third Doctor and Charlie Fisher, raising a gun at them. They had been trying to get the Doctor's TARDIS back from the Union Army. He and George attacked the wagon train transporting the TARDIS, thinking it contained money.
While he was inspecting the TARDIS his brother beat Charlie over the head, saying he "talk(ed) too much". While they were arguing about the interior of the TARDIS, the Doctor used some Venusian karate on him while Charlie grabbed the legs of his brother. Despite all that had happened, the Doctor offered to transport them to somewhere else in the world to start a new life, as he had to Charlie. The Bamfords, frightened, instead asked to be let out. They were immediately captured by Union soldiers. (COMIC: Backtime)