Your absolutely right about the Cornish connection, but it almost appears that the Huish name was actually at one time a Norman name. I found this pedigree
of Richard Hywish's.

Richard Huish or Hywish was born near St. Mary Magdelen in 1562 and was baptised there.
Here is his pedigree:
Rognwald, Count of Maerc maried Hildir dau of Rolf Nefio and
had,
Rollo, Duke of Normandy 911 to 927. he married Poppa Bayeau and
had,
William Longsword, Duke of Normandy 927 to 943. He married Sprota and
had,
Richard the I, Duke of Normandy 943 to 996. He married Gonnor de Crepon of Denmark and
had,
Richard the II, Duke of Normandy 996 to 1026. He married Judith le Tort and
had,
Richard the III, Duke of Normandy 1026-1028. His wife is unknown but he
had a Daughter Helen.
Helen married Hulbert de Huese a titled person of Normandy and companion of King William, and was given extensive lands, among those were estates in Devon,
they had,
Richard de Huese I of Dorset and Devon, who married ? and
had,
Richard de Huese II of Dorset and Devon, and Dunster in Somerset who married ? and
had,
Richard de Huese III of Lod Hywis, Somerset and married ? and
had,
Richard de Huese IV of Lod Hywis, Somerset and married ? and
had,
John de Hywis of Lynch and Doniford, born abt 1190 abd Died after 1254.
He had,
Sir John de Hywis of Lod Hywis born abt 1220 and died bef 1267. He married Joan Bausan and
had,
Geoffery de Hywis of Lod Hywis of Lynch and Doniford who married Maud Bloyou and
had issue,
John de Hywis of Lynch and Doniford and he married Emma Botreau, and
they had,
Gilbert de Hywis of Lod Hywis, Doniford. Gilbert married Alice Durborough and
had,
Oliver Hywish of Doniford who married the Lady de la Roche and
had,
John Hywish of Doniford who married Catherine and
they had,
Oliver Huish of Lod Hywis who married Joan Avenell and
they had,
Oliver Huish of Doniford and he married a Cavendish and
had,
Thomas Huish who resided in Sidbury, Devon and died 12 Mar 1556 and is burried at St. Mary Magdalen,
he fathered,
Robert Huish who records mention his death on 28 November 1558 in the Archdeacons Court.
He fathered,
Richard Huish, wife unknown, and
had,
Richard Huish of Sand and Blackfriars. He married Ebbot Lovel,
they had no children that survived.

Huese looks as though it may have become Huish.

This has been a riot! I'm far from done but would love to say "Thank you" to all who have helped. Greatly appreciated.

Cheers!