Directories by County
- Howard County, Iowa, 1875 Business Directory
- 1884 Iowa Farmers DirectoryCounty Township Directory
- 1906 Iowa Farmers DirectoryCounty Township Directory
- 1923 Iowa Farmers DirectoryCounty Township Directory
- Iowa State Gazetteer and Business Directory for 1882-1883
- Iowa Place Names Past and Present
As published online by the Iowa Genealogical Society
- Church Directories Various churches and years.
- City Directories Various cities and years.
Yearbooks
- The Mocoscan, 1926-1927 Yearbook of Modale, Harrison County, Iowa. The entire book on line, all grades, Sports, Glee Clubs, Dramatics, Alumni from 1896-1926, and the ads of the books sponsors.
- The Mocoscan 1938-1939 Yearbook of Modale, Harrison County, Iowa. The entire book on line, all grades, Sports, Glee Clubs, Dramatics, Alumni, and the ads of the books sponsors.
- The Mustang, 1949-1950 Yearbook of Modale, Harrison County, Iowa. The entire book on line, all grades, Sports, Glee Clubs, Dramatics, Alumni, and the ads of the books sponsors.