I just sent this message to the original response to your posting:
I agree, Donald, the location and time make it most likely that this is the David who married Hannah Flewelling, daughter of Thomas and Hannah (Smith) Flewelling of Hempstead, Long Island, NY. The probate records of her uncle, Abraham Smith, in 1734 identify her mother as his sister; and mention David Brundage as her husband at the time.
Thomas A. Murray
I wanted to thank you for posting that will, it is a useful piece of information.