I am seeking information on the children/parents of the Darbys who appear as the head's of families in the 1790 census. Most of them are centered around Orford Township, with one appearing in Lyme. I am looking for a father of a Nathan Darby who was born in 1779 and migrated to Canada (Ely Township, to be specific).

The names I need more information on are:

Nathaniel Darby (Lyme Township)

Jonathan Darby
Jonathan Darby Jr.
Pollas Darby
Simeon Darby (all of Orford Township)

I have ruled out both Abijah and Ezra Darby as potential candidates.