The Mary Clancy boarding with Annie Clancy appears to be a daughter, and the three men who all work at the same place look like sons of Annie as well.
Another later example from a 1955 city directory for Waterbury, Connecticut shows some interesting entries for the name Culotta: The Waterbury entries tell us quite a bit about this family.
In some years, there was more than one directory from competing directory companies, and adding to the resources are Seattle telephone directories for over 60 years.
It was profitable for the directory companies to publish annual name lists until the population of a city exceeded one million people.
After that, directories for the larger cities became regionalized into neighborhoods, suburbs, or downgraded to include just businesses or trade organizations.
People living next door ten years ago, for example, may still live there, and may still remember your relatives.
This is a technique that can be used to find lost relatives.
Some of the privately published directories for a city date back over a hundred and fifty years, and some collections are nearly complete for every year in which a directory was published.
Surprisingly, those that exist are quite easy to find.City directories can act as a substitute to the lost 1890 census, for example.Virtually every city in America with a public library has a collection of city directories for that city.Before the Internet, the Polk directories were the primary People-Finder service in America.Today, however, the older city directories are almost exclusively limited to public libraries, college libraries, and archives nearest to the city in question.The cross-street index is also a resource to find people whose names may have changed.