Does anyone have information on children of Capt. Joshua Gedney?

I am specifically trying to find information on his daughter Elizabeth Gedney or Gidney of Newtown, Suffolk Co., NY, who married 19 Jun 1783 in Jamaica, Queens Co., Long Island, New York, David Hallett of Hell Gate, Queens Co., Long Island. I would like to know if anyone knows the parents of David Hallet(t).

Also, her sister, Martha Gedney of Newtown married the same date, same place, Nathaniel Moore of Newtown.

Deborah