Hi Sylvia,
I haven't been able to browse b/m/ds on ManxBMD for months, and the dates they have on the "Search" heading haven't been updated, unlike the actual entries.
After reading your message I had a look for a common name (John Corkill) on the Deaths search, which is headed "Search for Deaths (to 1911)", but the 83 results ranged up to 1978.
"Search for Births (to 1901)" (John Kelly) had entries in the 1950s, but I have no idea how complete they are.
"Search for Marriages (to 1911)" (Ann Kelly) has entries in 1964.
Perhaps they are leaving the headings until all entries for a later year are entered.
Sue