Thought you might like to add this - if you haven't already found it - the "her" it is referring to is Elizabeth PLEDGER, dau. of John PLEDGER, Esq.
In Edmund Wetherby Jr.'s family bible it has her birth entry as, "born about two of the Clock In the mornen one fifteen of the weack."In the will of John Redstreak dated 17 DEC 1737 it says in part; to son John at 21 to have Melcome Island. In case of his death, to son Joseph Redstreak and for want of heirs to son Pledger Redstreak. In case of death of said children daid land to my wife Elizabeth. To my sister-in-law Mary Pledger five pounds. Wittnesses were, George Fling, John & Rebecca Richmond And John Pledger