Directories are good resources for many types of research. However, directories with information that is presented by address can be even more useful.
The primary purpose of this guide is to provide an inventory of two particular collections of directories that provide access by address/location. Access to these collections is limited to those at the Library of Congress they are not digitally available. Requesting these items is done in person with paper slips. More information about them is available on the dedicated inventory pages.
We have also included a few other related resources—of particular note are the city business directories. Many of these directories do provide information by address. Many of these directories are print only but some of these items may be available electronically in some fashion. More detailed information about these items is found on the City Business & Other Directories section of this guide.
If you cannot come to the Library of Congress, some directories may be available at your local public library or in a historical society collection.
Part of the Science, Technology & Business Division at the Library of Congress, Business Reference Services is the starting point for conducting research at the Library of Congress in the subject areas of business and economics. Here, reference specialists in specific subject areas of business assist patrons in formulating search strategies and gaining access to the information and materials contained in the Library's rich collections of business and economics materials.