Surname from death record of wife, Sophia, found in in March 2023:
Wife’s Name: Sophia P Moore
Registration Date:Jan 1962 [Feb 1962] [Mar 1962]

First given name, intitial of second given name, month/year of marriage from the England and Wales Marriage records found in March 2023:
Groom: William F Moore
Bride: Sophia P Parnell
Registration Year: 1915
Registration Quarter: Jul-Aug-Sep
Registration District: Launceston, Cornwall
Other Names: John K Heard, Jane Turle