Hudson Bay and/or Green River knives were pretty much the quintessential blades of the early United States. The designs actually come from European butcher's knives, but they found favor with later American hunters and trappers (who were mostly of various European ancestry). They were meant to be reasonably priced work horses. Often they were sold/traded as bare blades, which an individual would then have to complete with handle scales (such as wood, antler, bone, metal, ect).
If you're familiar with skinning and quartering big game (especially in the field), you can see how those designs would be useful for that. In fact, you can still see similarities in modern butcher's knife designs.
Ontario knife works has an inexpensive line of knives known as the "Old Hickory" brand. Their designs date back to the late 1800's, which was towards the end of the major hunting/trapping/mountain man era. Still, they're quite similar to what was typical of that period. I'm sure a lot of Bison meat was prepared using knives almost identical to those in the Old hickory line. If you know who Nessmuk is, his knife of choice had a blade profile strikingly similar to an Old Hickory skinner with a broken and worn tip (Which, as many recognize, is a common occurrence in knives that lead a hard life).
Also worth noting, around the same time (mid-1800's), there was a 'Bowie knife' craze going on thanks to the newspaper report of Jim Bowie's Sandbar fight and other exploits. The original Bowie knife is lost to time, but was reported to be a large butcher's knife.
There are books written as to what that blade might have looked like, but more than likely it was a much simpler blade than what we recognize as a Bowie knife. Later commercialization and trends likely gave us features that would be appreciated in a fighting knife....like stronger blades and swaged clip points.
All in all, the knife Byrd posted looks like a modern interpretation of a Hudson Bay/Green River knife with a hint of Bowie thrown in for good measure. I bet it would have been well used and appreciated in the hands of a 19th century outdoorsman. I don't know how many people could truly put it to good use today, but I'm sure they're out there. Unfortunately, they're probably stereotyped as ignorant hillbillies. So, they likely don't get much opportunity to share their methodology and history with the general populace.