I need to convert these address to modern ones as there was a change in the numbering of Chicago addresses between the time of these directories and today.
I need to find these people in the 1900 census.
I can use the locations to potentially look for church records--assuming the family went to church.
I should search in directories before and after this one to locate additional references to the family and see when they appear/disappear, etc.
A more detailed discussion of these families will appear in an upcoming issue of Casefile Clues, but one location in a directory is a beginning--not an end.