Guess it sort of depends on what you're really looking for. For a custom, I think Journeyman has already mentioned a couple of great period makers, but you'll pay accordingly. For a simple piece appropriate for the times (albeit, not exactly period correct given your previous info), I'd look at the green river. Crazy cow, has a couple of versions. There's the cheaper plain hunter version, the buffalo skinner and the more expensive hunter version with bone or maple scales. All probably decent options.
Don't know if this sort of thing floats your boat, but here's a vintage Green River bowie with a bit of interesting color on the paper label.
http://www.ebay.com/itm/Vintage-Joh...llectible_Knives&hash=item53f076f697
