Ca 1620 Sylvester married
Sarah Bryan (730) , daughter of
Thomas Bryan (293) (ca 1554-Oct 1611) &
Frances Bowlinge (ca 1568/9-Sep 1624).
Born ca 1602 in Aylesbury, Buckinghamshire. Sarah was baptized in Aylesbury, Buckinghamshire, on 25 Aug 1602. Sarah died in Milford, CT on 13 Nov 1669.64 Buried on 13 Nov 1669.65
After Sylvester Baldwin died, Sarah went to New Haven with five in her family and married 1640, Capt. John Astwood of Milford when her property was valued at £800, beside several parcels of land. Sarah gave 1 Oct. 1666 the cottage Sylvester Baldwin inherited to Edward Baldwin of Guilford, Co. Surrey, call. him "kinsman." In her will of 9, proved 20 Nov 1669, she provides for son John, and John his son, for Sylvanus, son of her son Richard, deceased and three of her daughters (one probabaly having died) of which two were married, Sarah, first wife of Benjamin Fenn, and Mary, widow of Robert Plum, beside six granddaughters.