In the late 1800's,there was a national effort to document U.S. county histories, including brief biographical sketches of prominent families. These histories can be located using the Quick Search box on the library homepage. The most effective search is to do an Advanced Search and change "Any Field" to "Title" and then search for:
"history" AND "[fill in county name here] County" AND "Biographical Sketches"
In addition, the ISU Library owns many Iowa county histories or maps which contain genealogical information. The most effective search is to use Advanced Search, change "Any Field" to "Title" and search for:
"[fill in county name here] County" AND iowa AND history