I found a Hannah Porter (40 to 45) living in Milford, CT with two daughters in the 1800 census - the curious part is that she's living next door to a Mary Pardee who is about the same age. Since Hezekiah Porter and Rachel Pardee were married in Milford in 1803, it seems possible that Hannah could be the mother to Hezekiah, and Mary could be a relative of Rachel who was the matchmaker?

There were no other Porters in Milford in 1800.

Grasping at straws...