Looks like Edmund Thrupp senior was baptised as Edmund Rasbal/Rastal Thrupp on 22/10/1786 Holt, Worcestershire (remember ages were rounded down in 1841 census) son of John and Mary.
Familysearch also shows a John Thrupp married a Mary Studman 8/5/1778 Hallow, Worcestershire.
Annette