If you search the index at Find My Past, entering MONK in the surname, selecting parish baptisms and enterinr Prestwood in the mother's forename there are approx. 10 baptisms - 3 in the Isle of Man, 5 in Liskeard Cornwall and 2 in Dodbrooke, Devon. Details of the Cornwall entries can be viewed at
https://www.cornwall-opc-database.org/search-database/baptisms/ To view the others you can access FMP at many major libraries or buy a subscription.