Mulford/Potter, Pluckemin, NJ

Can anyone identify for me the parents and grandparents of Thomas Mulford of Pluckemin (a village in southeastern Bedminster Township, Somerset Co., NJ), who married Elizabeth POTTER and had children William P. (~1805-1880), Samuel, Barnabas T., Eleazar, Mahlon (~1815-1887), Mary, and Mary Elizabeth, all probably born between about 1800 and 1825? Failing that, can anyone tell me which Mulfords, if any, are buried in the Presbyterian Church burial ground in Pluckemin, and what data appears on their stones?

I am trying to tie this Thomas Mulford into a larger overview of the North Jersey Mulfords. I suspect he was a grandson, perhaps even a great-grandson, of Thomas 4 Mulford (1719-1765) (Thomas 3,2, William 1). But I'd like proof, or at least supporting circumstantial evidence. Thanks for any information.