What's online?
The directories that are online were published by J.F. Diffenbacher or R.L. Polk & Company between 1815 and 1945. While most of the directories cover Pittsburgh and Allegheny City, a portion includes Homestead and nearby boroughs. This collection also contains several general business directories.
What's in the collection?
There is no actual collection held by one institution; rather directories were contributed by Archives & Special Collections (University of Pittsburgh), Detre Library & Archives at the Heinz History Center, Pittsburgh History & Landmarks Foundation, and the Carnegie Library of Homestead.
About Directories
Directories comprise listings of personal/business names and addresses.