Margaret St. John was actually wife of William Gostwick, only son and heir of
Sir John Gostwick, of Willington, Beds. (PCC 1545), treasurer of the First
Fruits and Tenths, as is proved by C 1/1187/5-8.
Sir John's brother, William Gostwick, Esquire, of Willington, was ancestor of
Mary Gostwick, mother of Nicholas Spencer, of Virginia.
Paul