The Norman Conks (or Norman Conquerors) were a large Catholic sectarian street gang active in Glasgow, they were often involved in street fighting with which Protestant group, from Bridgeton, and is also a loyalist song, with a title of its same name, from Glasgow?
Norman Conks:  They were initially a penny mob, but evolved into a larger, influential gang. Billy Boys: "Billy Boys", also titled "The Billy Boys", is a loyalist song from Glasgow, sung to the tune of "Marching Through Georgia."
Billy Boys