According to Wiki, this William Glover who changed his surname to Cranfield upon marriage to Joan Cranfield, heiress, was the son of William Glover and wife Joan (mnu) and a brother to James Glover. Wiki also shows this William's wife's maiden name as Cranfield, which he changed his surname to, not Glover.
https://www.wikitree.com/wiki/Glover-3526
Sources are provided on the page.
The info on Katherine Cranfield on Wiki
https://www.wikitree.com/wiki/Cranfield-79
Katharine was born c. 1502 at Barford Parish, Bedfordshire, England.[1] She was the heiress of the Cranfields of Great Barford Parish, Bedfordshire, England.[2]
Her birth date, 1502, is a guess, based on her marriage in 1522.
Marriage
Katharine married in "Ao 13 Hen. 8" (1522) to William Glover (later Cranfield).[1] Apparently, "William Glover of Kempston Parish, Bedfordshire" was originally named Glover, and he "adopted" the surname of his wife, Katherine Cranfield, who was a rich heiress.[3] Their children all had the name Cranfield.[3]
All that said, THIS William Cranfield who married Katherine wasn't named WIlilam Glover Cranfield nor was his father. He was born William Glover and changed his surname after marrying heiress Katherine Cranfield who was not born a Glover but clearly born a Cranfield.
