Brendan,
The "git" usage in 23a is kind of a (southern/western, slang) Americanism. Maybe not covered in Chambers (which I don't own).
I was only 12 when (10, 25) occurred and living in the Midwest. Too young for it to register, too far to look in out of curiosity.
Agreed on JJ, but any short sublist of participants is likely to be polarizing. :)