Have you noticed that the marriage in 1824 in Stoke Damerel is indexed at FS as Henry ADDAY or EDDEY?https://familysearch.org/pal:/MM9.1.1/N2G4-FQB
Lends support to the interchangeable name theory.
(I don't have access to FMP to look at the records to see what that one actually seems to say.)
HILL, HOARE, BOND, SIBLY, Cornwall (Devon); DENNIS, PAGE, WHITBREAD, Essex; BARNARD, CASTLE, PONTON, Wiltshire; SANKEY, HORNE, YOUNG, Kent; COWDELL, Bermondsey; COOPER, SMITH, FALLOWELL, WILLEY, Notts; CAMPION, CARTER, CRADDOCK, KENNY, Northants; LITTLER, CORNER, Leicestershire; RUSHLAND, Lincolnshire; MORRISON, Ireland; COLLINS, ?; ... MONCK?