Apologies, but the ACWSUK is not the place to go for "scholarship," at least not regarding the subject matter being discussed here. I acknowledge you were attempting to broaden possible sources for our inquiry. While domestic (C.S.) wooden canteens aren't really germane to the topic, you linked the ACWUK article so I'm going to address it briefly. The linked article has been online for years and is riddled with grave, fundamental errors that have never been corrected:
(i) It's Frederick J. Gardner, not "Francis" Gardner. Kind of a critical error, given that a goodly portion of the article is taken up with the supposed work of Gardner. Can't even get the name right?
(ii) Gardner never patented any canteen. C.S. Patent records are available. See Confederate Invention by Jackson H. Knight.
(iii) Gardner did not introduce convex faces on cedar canteens. This is reenactor folklore.
(iv) While there was a "Gardner pattern," it was hawked to the Ordnance Bureau only in June 1863 and we have absolutely no evidence that any were actually produced. Gardner and his business partner walked away from the SINGLE canteen contract they ever had. Only a portion of that contract called for canteens conforming to a "Gardner pattern" and it appears they were not yet even in production when the partnership dissolved.
(v) Author asserts not once, but three times, that the C.S. Quartermaster Department was responsible for canteens (!) The C.S. Quartermaster had no role whatosever in the procurement, fabrication or issuance of canteens.
(vi) Mass production of wood canteens began at least as early as December 1861, NOT "late 1862" or sometime thereafter. By winter 1862 a bare minimum of 50,000+ wood canteens had already been fabricated - and this is probably a significant understatement. By the time Gardner got involved, probably more than 100,000 had been produced in Alabama, Georgia and elsewhere.
(vii) Author's estimates of the thickness of the faces and staves on the typical C.S. wood canteen are grossly overstated. That's perhaps a fine point, but it's a reflection of the fact that the author undertook no hands-on research of any original canteens.
Red Rover previously posted a excerpt from a book, I suppose (but am not sure) it was authored by William C. Davis. You see in that excerpt some of the same serious errors that surface in the above article. Not sure which came first, but one relied on the other. Thus error frequently begets error. It's also sad, because the lack of accuracy and the lack of supporting primary sources leads to confusion and a great deal of wasted time. It's a great reminder - do not give credence to everything in print.
Bringing the