While a directory can often in itself be a source of interesting genealogical and biographical information, its chief value lies in its use as an aid to locating a person in place and time. One type of directory groups people by a common residence. The second groups them by a common association or attribute. In addition, many directories cover organizations rather than individuals and are sometimes called registers, catalogs, annuals, yearbooks, or guides. Whatever its title, contents, or method, a directory will always list and locate members of a group.
- The Indiana gazetteer, or, Topographical dictionary of the state of Indiana
- Grant County, Indiana Directory, 1901-02
- Johnson County, Indiana Directory, 1890
- Lawrence County, Indiana Directory, 1890
- Posey County, Indiana Directory, 1882
- Muncie, Indiana Directory, 1893
- Michigan City, Indiana Directories, 1890-91, 1893-94
- Valparaiso, Indiana Directory, 1885-86, 1890
- Portland, Indiana Directory, 1897
- Huntington, Indiana Directory, 1897-98
- Hammond, Indiana Directory, 1891-92
- Allen County, Indiana Directory, 1890
- Elkhart, Indiana Directory, 1890
- La Porte County, Indiana Directory, 1896
- Anderson, Indiana Directory, 1889-90
- Terre Haute, Indiana Directories, 1890, 1892
- Lafayette, Indiana Directories, 1885-88, 1891
- Evansville, Indiana Directories, 1888-92
- Indianapolis, Indiana Directories, 1887-90
- Tippecanoe County, Indiana Farmer’s Directory, 1919
- Montgomery County, Indiana Farmer Directory, 1920