John Moses Browning, January 21 or January 23,1855 – November 26, 1926, was born in Ogden, Utah. His father, Jonathan Browning, was also a gunsmith (moved the rest from Nauvoo, Illinois) and is said to have invented a repeating caplock rifle (although no examples have been found). By the way, Browning Arms was acquired by Fabrique National de Herstel in 1977.

I'll give you Stoner, but his AR-18 and AR-15 are the the prototypes of models used by police forces around the US, and his AR-7 is still produced (by Henry) and used by bush pilots and others (I have one myself and it's a great little system).

Winchester DID build upon the Henry rifle and financed the company, but was considered a gunsmith in his time -- especially by his wife, who was mentally unbalanced. Visit the Winchester Mansion in California sometime. The Volcanic line of arms was a dead end -- a lever action pistol? But it, like the Spencer and Henry rifles, showed the way.