Liverpool in cup 1977? Minimum 10,000, some say as many as 15,000
Northwich, same season, had to be played at Maine Road because too many Latics fans went to Northwich for tickets (myself included). Gate 27,000. Work out for yourself how many Latics fans but the Kippax was heaving
York away 1974, 8,000 at least in a crowd of 16,000
York away 1971, night game. At least 5,000. In fact all York games in the early to mid 70's had huge followings including 2,000+ for a pre season friendly
Rochdale in cup 1970. "Took" both ends as they say. 8,000
As you say we took some big followings back in the day.