Sorry, Mick, just spotted this one. Your Pratt song is Roud 21377 21397 and it was printed by The Glasgow Poet's Box in 1857 so that takes it back a bit further. The air given there is 'The Irish Washerwoman'. I don't know if this relates to any of the tunes you have. Broadside printers often just added any tune that might fit if they didn't have the original. it does actually go quite well to 'Irish Washerwoman'.