Tan Hill fair had a bit of a reputation. An 80 year old shepherd, Daniel Swatton, speaking in the 1930s, said “Th’ used to reckon as anybody could get a pint o’ beer an’ a smack on th’ yead ver dreepence up at Tan Hill.”
(from ‘Shepherd Lore – the last years of traditional shepherding in Wiltshire’ by Peter Gurney (C S Smith), published 1985 but written 1935)
I’ve read that the fair was held on August 6th which was the new ‘old style’ calendar version of July 26th, the feast of St Anne, the mother of the Virgin Mary.
books.google.co.uk/books?id=i-MMAAAAYAAJ&dq=hill%20fayre&pg=PA35