Not sure if you'd found this info re: James, using his leather skills...

Found a patent - Canada Patent Office 1885 Nosworthy, James, Belleville , Ont, Ca. Cartridge - belt
More info page 371
https://books.google.ca/books?id=bb9QAAAAYAAJ&pg=RA2-PA371&lpg=RA2-PA371&dq=Nosworthy+,+James+,+Belleville+,+OntarioUnited States. Patent Office · 1888 · Patents 2563 1.34 357 Nosworthy , James , Belleville , Ontario , Canada . Cartridge - belt
Montreal Herald- 7 avril 1886
Military Accoutrements. Ottawa, April 6.—ir, James Nosworthy, of Belleville, has arrived here with samples of his military accoutrements, which he will lay before the Militia Department of the (Government. His waist belts and modern cartridge belts have been examined by local military men, who expressed very flattering opinions.
https://numerique.banq.qc.ca/patrimoine/details/52327/4101367Hastings Chronicle, Wednesday, July 13, 1859
Check out the prices for these buildings!!! [n. w.] corner of Bridge and Charles streets, [156 Bridge Street East] on a beautifully elevated site, is a Cottage for Mr. J. Nosworthy. It is of brick, two stories high, 40x54 on the ground, including the north wing. With the wood-house, stable, carriage house, and outhouses complete, the cost will be about £1000
also Albert Street.
Mr. James Nosworthy has put up on Albert Street a double tenement house, two
stories, brick 44x33, with kitchen 24x17. P. Carey, mason Geo. Reeves, carpenter. T.
Gardner, plasterer. "Cost $3,500."
http://www.rootschat.com/links/01rvo/Adding: also Deed relating to land on Bridge Street in Belleville, Ontario
CA ON00156 2018-063 Item 1855 Bargain and sale of part of lot 24 on the west side of Pinnacle Street and north side of Bridge Street in Belleville, Ontario from James Nosworthy, saddler and Harriet Clapham Nosworthy, his wife, to George Taylor of Sidney Township. Dated 7 May 1855. County of Hastings
& just noted:
James NOSWORTHY married Harriet C. (Clapham) FURNIVAL, 17 March 1840
a few months before her own mother was married again.