Sylvia Looked at some length at Old Kirk Braddan Burial index. Found your Margaret Cavendish,
64 / 11 OCT. 1823 als.Crellin . No stone. Only other
Cavendish funerals-
Isabella als. Moore 20 May 1889 ? taken to Onchan
for Burial.
Christian C 13 March 1804 als. Cannon taken to Kirk Michael.
No other burials with your surname variants.
May have made error Isabella buried 20 May---1809 Onchan. Will check for you later if needed. No
surname variant burials there but other Cavendishes.