The Gaylords where a pretty "powerful" gang which started on the "Northside" back in the 1950s through the 1970s. They where the biggest "White" gang in Chicago. Though there is "Gay" in there title, doesn't mean there literally "Gay". I definitely wouldn't of messed with them.... They where pretty hardcore. Also there colors where Black and Light Blue (or Grey, or Brown) depending on there location throughout the City.
No offense but It's a little childish to refer the name "Gaylord" to "Gays". There are plenty of people with that Last Name, or even as there First Name.