Hi Vista, I do not believe so. These are the rest of the photos of that piece.
I think that the figure is an Old Glory sculpt. Maybe a Mountain Man?
I did this so long ago that I just can recall where the figure came from.
I do seem to recall converting the rider, by replacing his right arm, with an arm firing a pistol.
I made a whole series of Mounted "Over Mounted Men" on their way to Cowpens.
This was just one of them.