Having checked the Albion A-Z , I can confirm we have all the obvious ones up to 1998!
If you're counting players that didn't make a first team appearance (Navarro according to his wiki) we can add the hapless and hopeless Ashley Neal. Eight down three to go.
For the official list, see here. If you want to keep guessing, please do (those of you whose memories go back over a hundred and twenty year will be at a considerable advantage!)
https://www.lfchistory.net/Opposition/Team/Profile/11
Manchester United.Alex Dawson
Everton.Simon Steele?
Good thread mate - enjoyed that.That is the list i was working from !
If Navarro counts, then i presume so does Craid Noone, who was there until he was 16.