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| | The Civil War Defenses of Washington: Historic Resource Study (Part 2, Chapter 2 Endnotes) |
 | | RG46, 56th Congress, Committee Papers, Committee on Military Affairs, Sen 56A-F21, Box 97; Archives of the District of Columbia, Records of the District of Columbia, Central Classified Files: Engineer Department, (ED) Engineer Department Case Files, 1897-1955, #23181. |
 | | 58th Congress, 2d Session (Washington, DC: The Government Printing Office, 1903), 30, 47 (S2526); Journal of the House of Representatives of the United States. |
 | | 58th Congress, 2d Session (Washington, DC: The Government Printing Office, 1904), 270 (HR 12149); Journal of the House of Representatives of the United States. |
| www.cr.nps.gov /history/online_books/civilwar/hrs2-2n.htm (3760 words) |
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