I looked at some excerpts of the 1856 Griffiths Valuation for the Williamstown area. There is one Tarmey (SIC)listed in Islands East John Tarmey, landlord is James Lynch. Also a John Tarmey listed in Islands West same landlord , might be the same John Tarmey. There is a Michael Tarmey listed in Kilnalag (my ggggrandfather)and a few more scattered around. Also Three Finnegans listed in Castletogher townland .