for John Roberts, William Schaefer was a company with a fair stable of gunsmiths. Most of the actions started overseas, but all appeared to be finished in the U.S. Nimschke engraved many of them.
To the list you can add the following. Sorry I probably duplicated some.
Adolph, Hasdell, Donn, Three Barrel Gun Co, Royal Gun Co, Thomas Golcher and several other Golchers [Goulcher], Winchester, Boyd and Tyler, Abbey, Torkelson, Thomas ,Forehand, Daly, Kennedy, Green, Flues, Euterbrouk, Overbaugh, ----the list goes on