The fantastic Bishopsgate Institute LGBTQ+ archive has digitised issues of Jeremy, a London-based gay lifestyle magazine from the late 1960s and early 1970s. A 1970 issue includes 'A lingering look at skinheads' (vol.1, number 8).
[When I was at school the term 'Jeremy' was used as a homophobic slur - 'a bit of a Jeremy' etc - which I assumed was related to the Jeremy Thorpe scandal in the 1970s (Liberal MP accused of plotting to have an ex-lover killed). But was the term in circulation before that, associated with the magazine?]
The Union Tavern is now the Golden Goose theatre. The Union Place Resource Centre - a radical community printshop - was a couple of doors down, and I drank in the Tavern after popping down there sometimes. I remember one night meeting veteran council communist Joe Thomas in there, as he died in 1990 I think this must have been in 1988/9.