For those who thiink they have all the answers but who never post their sources and think they can oush their agenda without external support and qualification, I am posting this information about SFDB's parentage;
Normans
Hammond, or Hamon
Source:
MRS Magnum Rotuli Scaccarii Normanniae
Memoirs de la Societe des Antiquarres de la Normandie, t. 15-17
Six Sons of Geoffrey Fitz Hamon:
Geoffrey
Ranulph
Waleran
Richard
STEPHEN
Hamon or Hammon
Normandy: 1180-1198 (MRS)
John Hamo, England, c. 1272 (RH)
Hence the Baronets Hammoond
(RH = Rotuli Hundredorum (Record Publications)