If you have a full name and date of death, you can obtain a copy of the will [if one has been made] by writing to York Probate Registry, Castle Chambers, York, YO1 9RG, with the details.
Enclose a cheque for £5, for each will, [non-returnable] made out to HM Paymaster General.
They will search for 4 years from date of death.
Hope this helps!
Kooky