Brian, I'm hoping this is the one you're seeking--this is 1956 not 1965

Douglas Borough Cemetery
Block NM
#65
In Loving Memory of Thomas Henry COWELL
dearly loved husband of Alice Gladys
died 24th May 1956 aged 68 years
At rest
Also Alice Gladys COWELL
beloved wife of the above
died 29th August 1970
aged 69 years
Thy will be done.

DJD