Letter signed A.M. Pennock, Cairo, Illinois, to Seth Ledyard Phelps, Cairo, Illinois, June 21, 1863, D01842. Missouri Historical Society Library and Research Center.

Letter signed A.M. Pennock, Cairo, Illinois, to Seth Ledyard Phelps, Cairo, Illinois, June 21, 1863, D01842. Missouri Historical Society Library and Research Center. https://mohistory.mobiusconsortium.org/repositories/2/digital_objects/9324 Accessed September 20, 2024.