In the UK there seems to be three sets of "Travellers"
1 Festival crashing, untaxed and insured multi coloured bus driving, benefit claiming, and cider drinking new age thugs.
2 "Tinkers" who create mess and trouble were ever they go.
3 Roma who I don't think I've ever seen around here. The Roma worked in Agriculture travelling with the harvests from south to north.
Unfortunately the only ones you meet round here in Manchester are 1 and 2.

TTFN
PP