I wondered that. They won Division One, in 1923–24, 1924–25, 1925–26.
I'm assuming that's what they represent.
Yup. Apparently Huddersfield were the side to beat, back then.
For the record, I think Wagner has done a terrific job. I don't wish any ill will on them. They play good football and it would be cool to see them get promoted too.