The «blue book» is one of the original city directories and was an invaluable tool thru the decades for door - to - door sales, law enforcement and collection agencies. (coleinformation.com)
Houston City Directories for selected years between 1866 and 1922 are now available through the Houston Public Library Digital Archives. (houstonlibrary.org)
HeritageQuest Online contains U.S. federal census records from 1790 - 1940, special federal census schedules, over 20,000 local and family history books, over 20,000 U.S. city directories, a genealogical and local history serials index, Revolutionary War Pension Files, Freedman's Bank Records, and select content from the U.S. Serial Set. (buffalolib.org)