Several records from the court of the manor of Stokenham, Devon, referring to "John Marche", "William Marche, son of John Marche" and "Peter Marche, son of John Marche" are listed. Records for John Marche occur in Sept. 1569 and Sept. 1570, and for William and Peter in 1580/1, 1587 and 1599-1601. There is also a court record in Oct 1610, referring to "William Marche, sen."
The author speculates that William Marche, the Elder, of Sherford, Devon, who wrote his will in 1612 may have been the same person as "William Marche, son of John Marche". While this is possible, another explanation would be that William, the Elder (or "sen.") was John Marche's brother (or other contemporary) and was known as such because John's son was another adult William Marche in the area.