Letter signed H.W. Halleck, Head Quarters, Department of the Missouri, St. Louis, to His Excellency Gov. Gamble [Hamilton R. Gamble], March 24, 1862, D03133. Missouri Historical Society Library and Research Center.

Letter signed H.W. Halleck, Head Quarters, Department of the Missouri, St. Louis, to His Excellency Gov. Gamble [Hamilton R. Gamble], March 24, 1862, D03133. Missouri Historical Society Library and Research Center. https://mohistory.mobiusconsortium.org/repositories/2/digital_objects/3660 Accessed September 19, 2024.