4 books
The Pittsburgh Directory For 1815; Containing The Names, Professions And Residence Of The Heads Of Families And Persons In Business, In The Borough Of Pittsburgh, With An Appendix Containing A Variety Of Useful Information
The Pittsburgh Directory for 1815; Containing the Names, Professions and Residence of the Heads of Families and Persons in Business, in the Borough of Pittsburgh
The Pittsburgh Directory, for 1815
The Pittsburgh Directory for 1819