The NJ Archives had marriages -
Edward Adaire of Bucks, PA m. Aug 1 1737 Mary Allen, Bucks.
Wm. Adaire of Bristol, PA m. July 13 1759 Margaret Currant.

The Historical Society of PA had in it's MANX online catalogue -
ALLEN, Elizabeth A. Collection, 1699-1858.
(ca. 75 items.)
Deeds, mortgages, and other title papers for lands in Middletown, Northampton, and Bristol townships, the borough of Bristol, and the village of Attleborough (now Langhorne) in Bucks County.
Also included are a copy of Jeremiah Langhorne's will;
a transcript of a Quaker tract, 1762, by William Motte, on Christian pilgrimage;
the constitution of the Middletown School Association, 1834; a survey plan of Washington Village, Bucks County.
Gift of Elizabeth A. Allen.

Would there be and mention of Adairs in these papers ?