I've been to the site you recommended while doing research on the hangman in the family.
I am giving a talk to my local family history soc about a couple of my more interesting family members and used that site and a fantastic book about hangmen in England to get a bit of social background and put a bit of meat on my hangmans bones.
When you go behind the actual job and think of his life and how he and other hangmen ended up, well, not go there on a noticeboard.
Funny, the only really interesting people in the tree are 'in-laws'- people who came into the tree and went off at an angle - but I would not be without them.
I noticed its mention of a relatively "recent" hanging for forgery.
Around the same era, a Scot (in-law!) I'm researching was (in 1848) sentenced to 7 years transportation to VDL for forgery (fortunately hanging was not suggested). As it happens, in 1850 he was on the hulks in Portsmouth just about to board ship for VDL, when the pardon (courtesy of the efforts of his good wife who came from Rothesay Bute, supported by the gentry and worthies of West Fife which was where he farmed) came through. However, he must have liked the idea of going to Australia - just a few years later he and his family embarked as paying emigrants and were very successful here (though he went to Victoria not Tasmania!).
Very very much further back in the same family, I've come across someone who might be connected (or even an ancestor of the later people) in Dunfermline, Fife with occupation given as hangman; I hope it was not this family but who knows and who knows what the pressures of that distant time were ...
Scotland - HALL, HARLEY, LOCHTY/LOCHTIE/LOUGHTIE/LOUGHTY (very rare), MCLAUSE/MCLAWS/MCILHOSE/HOSE (quite rare and many very variable spellings - close to 100 to date), PHILP/PHILIP, VASSIE; Ireland - BOURKE/BURKE, DONOHUE (many spellings), DOOLEY, KINSELLA, MAXWELL, OSBORNE, RAFFERTY, STA(U)NTON, SULLIVAN; England - BAYES, BROWNELL, DALTON, FREEMAN, HACKING, PIERCY, SIDDLE, SWIFT, SULLIVAN, TINK(L)ER, TRIPPIT. Any spellings and many other names!