I may never relocate that adv. to English and Irish chapman ref. I didn't note it my broadside ballad index (but noted another in Pepys' colln addressed to 'any chapmen'). A quick thumb through didn't turn it up in Leslie Shepard's 'The Broadside Ballad". He liked to throw in tidbits like that.

Got my Irish 18th century printer mixed up with a Scotsman of slightly different name, and loosely used 'broadside' for that and song chapbooks. See ZN79 in by broadside ballad index for a song published by the Irish one (Macgee), in Belfast, 1764.

John, some work on ballad opera history said that Charles Coffey (evidently Irish) took the title for his ballad opera "The Boarding School", 1733, from a broadside, presumed Irish, copy in NLI. No mention was made of a publisher's imprint. (The short statement in the ballad opera tune index on my website at "Make you honour's miss" may not be 100 % correct, but I don't have the original to check.) I don't have the first line, so don't know if two copies of one of that title in the Madden collection (Steve Roud's broadside index) are the same song. (No copies by title or first line on the Bodley Ballads website that I could find.)

Please pass my regards to Frank from me. Our brief correspondance ended about 30 years ago. "The Flash Lad" on my website was due to his spotting it and in copying it out for me from Douce 10 at the Bodleian.