Who is William Henry Harrison (Bill) from Red Prophet and what is their importance?

Bill Harrison is the Governor of Carthage City. Harrison gave the stockade that name in an effort to make it more civilized, and is as vain as they come, having appointed himself as Governor. He calls himself a General, but in fact has never so much as had a commission that was more than a Colonel. Bill's new wife is a young fifteen-year-old who he adores and who gives him a son.