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U.S. Telephone Directory Collection - Library of Congress
Online Resources - United States: City and Telephone Directories ...
Mail and Phone Directories | National Archives
United States: City and Telephone Directories - Library of Congress
Old Telephone Books - Internet Public Library
United States: City and Telephone Directories
Telephone Directories - Ancestry
New Digital Collection: Library of Congress U.S. Telephone ... - History
Manhattan Telephone Directory - NYPL Digital Collections
United States Directories • FamilySearch