Hatfield Rifle Works of St. Joseph Missouri!! Their long rifles, more like the typical Southern 'Poor Boys" rifle hit a market starved for muzzleloaders back in the late 70's and early 80's. Hatfield's signature was a premium curly maple stock stained a deep rich red. They imported the barrels, locks and triggers from an Italian firm, David Pedersoli, which were then stocked in their factory. In 1986, they imported parts for a double barreled boxlock in which they stocked in their signature deep red stained curly maple. It was unusual to see a double barrel stocked liked that and you see them sometimes on the internet sites selling for around $2,000.
Their long rifle design was flawed using two screws to bolt the barrel down as oppose to a wedge or pins, which is a much stronger design. But, people loved them and bought them up plus the Pedersoli barrels were excellent round ball shooters, a bit temperamental, but what rifle isn't!!!
Hatfield Rifle Works went out of business sometime in the 90's, and with it their shotgun and their rifle. This new company using the Hatfield name, I don't think Ted Hatfield is involved anymore, is importing a new shotgun how good or dependable it is I don't know.
All the best