Military records at the State Archives, a division of the State Historical Society of Iowa, include the State Adjutant General's records of Iowa volunteers in the Mexican War, Civil War, and Spanish-American War. Included among those records are regimental muster rolls, enlistment papers, roster books, reports, pay books, and correspondence. There are indexes for some of these records. Index entries can be copied for a fee. There are no pension records for Iowa volunteer units. Records of the Grand Army of the Republic posts for many Iowa communities are available at the state archives. Casualty files for World War I and II have information, and sometimes photographs, of individual servicemen.
Taken from Iowa, Ancestry's Red Book by Carol L. Maki, edited by Alice Eichholz. (Salt Lake City, UT: Ancestry Incorporated, 1992).