This primary source comes from the Records of the U.S. Senate.
National Archives Identifier:
306184Full Citation: Three Photographs of Damage Done To Fort Sumter; ca. 1864; Committee Papers of the Committee on Military Affairs for the 38th Congress; Records of the U.S. Senate, Record Group 46; National Archives Building, Washington, DC. [Online Version, https://docsteach.org/documents/document/damage-fort-sumter, May 3, 2024]