Look in the ALR Library.
Moore is listed by at least one reference in Union, NY, however there is some disagreement as stated in the discussion. I tend to believe that "Union" is a reference to what has since become a portion of Schenectady and is no longer a political entity.
I believe there is no question that the same Moore retailed guns out of NYC at various locations over many years. Ned Roberts mentions another Moore specific to NYC. Probably related and somehow connected.
Good luck on you quest.