H. G. Newcomb is a little known maker of Vicksburg, Mississippi who made
his own derringers. I have only heard of two guns by this maker and they
are in a collection in Mississippi and maybe sometime we can obtain this
specimen for photographing and describing.
Apparently Newcomb was active about the same time as O’Dell but he lived
into the early 1870’s. Two of his derringers are known and one is even
more ornate than O’Dell produced guns while the other is very plain. It
is rumored that some genuine Henry Deringers were agent marked with
Newcomb’s name but I have never personally seen one of these guns.