Lola, Where is his tombstone ? Does it have more than the year ? Does the cemetery have any records at all? How do you know he did not die in Mercer County ? If you have the date you can get a death certificate for $ 3.00 from vital statistics in New Castle if he died in Pennsylvania after 1906. They will also do a ten year search for more money. Get as much information as you can before you send for certificates, it makes the search more accurate. Often, in a large state, there are people of the same name dying on the same day. Ask me, I know. When you get as much information as you can, contact me and I will mail you an application. Mac