Sorry it was 1967 not 68. Sammy Cash and Upton Hobson are names that crop up.
Upton might be related to Billy Hobson (The Painter) he's still knocking around in the Colne pubs.
There is 'The Weavers Jingle' noted plus various written sources to the dance tunes and steps.
There is a nice photo of Henry Whittaker ( of Nelson) dancing. He sang the Weavers Jingle while putting his clogs on.
No doubt you already have the Lancashire Hornpipe.
You could do worse than have a word with Sid C. he's a mine of info.