death records

Have you tried https://www.findagrave.com/ ?

yes and checked churches near where they last lived

You give no dates so its hard to tell what might be useful:

See the following:

-  https://www.familysearch.org/search/collection/1320976 

- https://www.familysearch.org/en/wiki/Pennsylvania,_Philadelphia_City_Death_Certificates_-_FamilySearch_Historical_Records 

- https://www.familysearch.org/en/wiki/Pennsylvania_Vital_Records#Birth_And_Death_Records 

yes- no luck!

Thanks! The problem is we don't have a date!! just an estimate- between 1891 and 1895.