OK so I went down a bit of a rabbit hole one day and looked this up in the Scotsman Archives. If I remember correctly, they are right, the place is named after an Archibald Chessels (not Chessel). But I think we also decided that OSM should follow what the signs say, so if the association can be bothered, they should get the council to change the name and signs first. So I'll just close this note with no further action for now