John DE ST. JOHN
John was born about 1383 in Faumont, Glamorgan, Wales.  He died after 1421.

 Elizabeth PAULETT
Elizabeth was born about 1387 in Bletnesoe, Bedfordshire, England.  Elizabeth is no longer alive.

 Oliver ST. JOHN
Oliver was born about 1400 in Of, Bletso, Bedfordshire, England.  He died before 1440 in Penmark, Gloucestershire, England.