Phone books and city directories are a great source of information to help determine the location of the residence of a family.
Below is a list of some of our favourite free sites for these directories.
For many of these sites you will probably want to add a city name to the search box to refine the results.
Scanned telephone books from many locations and time periods in Alberta, Canada from 1903-2017.
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Lists of the head of households and house numbers for villages in Burgenland, Austria (formerly Hungary).
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Henderson's directories from early to mid-1900s Western Canada.
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Historic telephone directories for many US locations.
OpenIf you are looking for a location not mentioned above, you may want to try searching the Internet Archive or your preferred Search Engine.