Decatur County

Biographical and Historical Record of Ringgold and Decatur Counties, Iowa...Chicago: Lewis Pub. Co., 1887. - index, some bios online*

History of Decatur County, Iowa...J. M. Howell and H. C. Smith, supervising eds. 2 vols. Chicago: S. J. Clarke Pub. Co., 1915. -  index, 22 bios online

Down One Hundred Years, by Lawrence D. Ahern. Des Moines: Wallace-Homestead Co., 1938.