Two journal articles, "Floating Vengeance: The World War II Japanese Balloon Attack on Colorado," Colorado Heritage, Autumn 1993 and "The Japanese Balloon Bomb Campaign in North Dakota," North Dakota History: Winter 1997

Michael Unsworth delivered the dedication speech for the Carleton Elliott Simensen Military Heritage Collection. This collection of materials consists of Unsworth's curriculum vitae, de-classified balloon bomb incident reports (photocopied from the National Archives), newspaper and personal accounts of the balloon bombs in North Dakota, copies of two journal articles written by Unsworth regarding the balloon bomb campaign and correspondence between Unsworth and the Department of Special Collections regarding the Simensen dedication. The materials were added to the Military Heritage Collection by Dean Yates in December 1997 (Acc. #97-2169).