In the summer of 1926, the County Library Committee of the Iowa Library Association rolled out what would become Iowa’s first bookmobile. Every county in Iowa could secure the use of this library on wheels for a week at a cost of $50, to help stimulate interest in the levy of a tax so that each county might have its own library and caravan. The Book Caravan traveled to rural communities in the state, and Lydia Barrette (1881–1963), city librarian at Mason City, came up with the idea for it.
Davenport (Iowa) Public Library: Primary Selections from Special Collections, Apr. 15, 2015