Yep, Dave,
Lots of memories of Rennie, in The Cropper Lads. Jim Potter has returned to the fold in recent years and can be heard on the YG website. Pat Pickles is still around doing her jig dolls and postcards in Wakefield. I used to buy and sell books from Tom as well. Small world! I believe 'Methody Parson' was collected by one of the students on the Leeds Folklife Course. I've got it somewhere, but it's not particularly a Yorkshire song and not all that scarce.