I Have Traced My Genealogy Back to Thomas Bishop but I Have Found Conflicting Information on His Wife IN One Place I Found He Married Rachel Matlock...
Thomas BISHOP b. Nov. 15,1665 d. Aug. 2 1746 (born either in England or New Jersey)
Had a son with ?? MATLOCK- parents William and Ann(ATRUM)MATLOCK
Son was John BISHOP b. April 11, 1713 d. Jan. 24, 1761/2 (born in Connecticut, died in New Jersey)
John had a daughter Jemima BISHOP(1740-1782)(born in New York, died in New York) who married Jeremiah STIVERS/STEVES (1720-1796)(born in New York, died in New York) 1757

Have you considered that he may have married both women?
I have in my family tree, an instance where the first wife had died early and the husband then married a younger sister.