During or after the Civil War, no official history was ever written on this Missouri Union Cavalry Regiment. This book hopefully will accomplish this. While the Regimental records now lay at the bottom of the Mississippi River near Greenville, Mississippi when the Steamer B.M. Runyan hit a snag in the river and sank in the summer of 1864, the records have now been reconstructed for the first time along with Rosters. This book is based upon three separate partial histories which were incomplete individually, but have been conveniantly consolidated into a consistant timeline, for the benefit of the men who served in the Regiment as well as future researchers. From early events through the end of the war, the book also gives a brief history of the Civil War in Missouri.