I have found an interesting burial and cremation database that
includes many Jewish surnames of people who were either cremated or
buried in non-Jewish cemeteries. There are over 450 cohens and Levi
names. The central database for UK burials and cremations. covers UK,
Ireland, malta, cyprus and Singapore.

https://www.deceasedonline.com/servlet/GSDOSearch

Registers can be searched free by Country, Region, County, Burial
Authority or Crematorium. Register as a Deceased Online user and gain
access to

Computerised cremation and burial records
Digital scans of cremation and burial registers
Photographs of graves and memorials
Cemetery maps showing grave locations
Other occupants in the same grave.

Saul Issroff