I think the idea went back and forth, at least for the military.
General Wolfe ordered that his light infantry do the following during the F&I:
"His knapsack [the light infantry soldier's] is carried very high between his shoulders, and is fastened with a strap of web over his shoulder, as the Indians carry their pack."
Now this is very odd because we know that in Morier's paintings of the British regiments, that in at least three we can clearly see what appear to be cowhide, hair on, single strap packs, slung over the right shoulder...and these were painted about a decade before the F&I.
So WHY does General Wolfe need to specify "over the shoulder" and "as the Indians" when that was how soldiers carried packs in the past???
:idunno:
Later, during the AWI, Maryland contracted for a "new invented haversack" which was a combination pack, and haversack, with a single shoulder strap...going backwards from the two-strap pack in use by other colonies.
LD