I came across this website by accident, when I was looking for NZ wills which were also recorded in England. This happened when there was property in both places.

At the moment the website covers 1931 to 1939 which is handy for IOM wills (of people with property in England), because Brian's index ends in 1920.

The index records surname and full address, and under "details" you can ask for more information (year and full names) from the website owner.

There is also a separate list of grantees which only covers 1933-1935 at the moment.

There are 800+ entries for the IOM, at:
www.haine.org.uk/toms_wills/wills_data.php?parish=Isle of Man

Sue