Hi Karen,
I remember the baths ... I was at Sheffield University from 1957-62 and a member of the University swimming club, and used to play water polo. At lunch times we either trained speed or distance swimming at Glossop Road baths or came down to Upperthorpe where we were allowed to use a water polo ball, and spent an hour or so churning up the pool!!
I do remember winter or summer the water was always very warm. No photo's I am afraid, but fond memories of the place..
Yours Sincerely,
Bill Lee.
PS, I am Sheffield born and bred, lived all my working life there, but now retired and living in Norfolk.