Shankly had just bestowed that nickname on us when I first got into it, my uncle used to drink with some of them (even a night before a game!) and that's what he always called them. It made a lasting impression on a young nipper.
Been to Sheffield many times over the 5+ decades I've been going, both Wednesday and United (I wasn't there that day but some may have heard the story about Coombsey's Commandos in the 70s at Brammall Lane!). I've tried to find footage of when we went to Hillsborough in the FA Cup in 1984, live on the BBC but an estimated 10,000 made the trip. We had the entire Leppings Lane end, something like 4 or 5,000 in the seats in the upper tier and even more rammed on the (infamous) terracing on the lower. Only a brief grainy video but the game itself was fairly dour - replay was better.