A mason by trade, Fernham gained the freedom of Ipswich by paying an entry fine of 40s. in March 1417.
In 1432 Fernham and other burgesses joined the duke of Norfolk in a conveyance of the manor and advowson of Crownthorpe in Norfolk, apparently on behalf of John Wymondham*, who acquired estates at Crownthorpe in this period.
Fernham survived into the following decade, but he disappears from view after 1442 and may have died shortly after that date. Nothing is known about his wife, but he had two daughters, Joan and Isabel. Isabel had married John Stutt but she was a widow by September 1432.
