Ken, that's pretty good. A couple of things could be added for clarity.
I think Batavia Metal Products , after the gunmaking business sale, made things in addition to auto parts.
Folsom made Bakers tend to be of lesser finish quality as the years went on.
I am not sure that the Crescent / Davis relationship was a merger or if there was a purchase. That's not really important to the Baker guns, I guess.
Ads and catalogs for the Folsom Bakers seem to carry a New York Address, which probably relates to a Folsom company address.