On August 7, 1863, Col. E.B. Alexander, Acting Assistant Provost Marshal General in St. Louis, writes to Capt. William Fowler, Provost Marshal for the 7th District of Missouri, in St. Joseph, Missouri. Alexander copies the text of a communication he received from the Provost Marshal General, stating that Deputy Provost Marshals are not in the U.S. service and are therefore eligible for the draft.