Posted By:
Brian HScott -
I think it looks like Asa Barnard as well but this is identified as being from the Halper Collection which (within most of the hobby ....er business) pretty much takes Verkman off the hook for the identity.
Also, Asa had pretty crazy bio and unless this was taken by the end of 1870's I doubt it could be him.
I don't remember his bio off hand but things got pretty sick for him by the mid-1870s.