"Sarah Buckingham, daughter of Samuel and Sarah (Baldwin) Buckingham, … is supposed to have married Barnabas Baldwin. (See New Haven Probate Records, vol. 2, p. 256.)"
The will of Samuel Buckingham, father of Sarah Buckingham, dated 6 October 1692, calls her "deceased" and provides legacies to her sons Thomas and Barnabas. This document establishes that Thomas and Barnabas were the only two children of the senior Barnabas who were children of Sarah.