Gary,

Have you tried typing '1510 Fairmount Ave' into the Philadelphia City directory instead of a name? Place it in the Keyword field.

I no longer have access to Ancestry.com searches with complete results because I got rid of my subscription because of their search engine and their indifference to pleads to keep the Old Search. In any case, I did find a Samuel C Houston in my 'crippled' query by just placing the street address in the Keyword field.

Good luck,

Frank