Details of Officers in Corps of Engineers by Thomas Lincoln Casey, undated Dewey to Thomas Lincoln Casey, April 23, 1886 Dewey to Thomas Lincoln Casey, August 27, 1893 Diary of Work, November 3 to December 6 Dimensions of [illegible] Obelisks, undated Dimick to General Silas Casey, March 20, 1855 Dixon and Carson to Thomas Lincoln Casey, October 5, 1878 Dodge to Thomas Lincoln Casey, undated [1882] Donoghoe to Thomas Lincoln Casey, October 14, 1872 Douglass to Adjutant General [telegram, copy]; Robert Scott to Thomas Lincoln Casey, September 15, 1886 Clara Derby to Thomas Lincoln Casey, October 21, 1894 Clare [illegible] to Thomas Lincoln Casey, undated [1880] Clarence King to Thomas Lincoln Casey, April 8, 1892 Clarence King to Thomas Lincoln Casey, February 3, 1871 Clarence S. King to Thomas Lincoln Casey, October 23, 1893 Clement Weaver to Thomas Lincoln Casey, April 4, 1892 Cleveland Abbe to Thomas Lincoln Casey, January 12, 1882 Cleveland Abbe to Thomas Lincoln Casey, undated [January 1881] Clinton B. Sears to Thomas Lincoln Casey, June 18, 1889 Clinton B. Sears, Special Orders, April 26, 1888 Clinton B. Sears, Special Orders, June 13, 1888 Clinton B. Sears, Special Orders, June 15, 1888 Clinton B. Sears, Special Orders, June 19, 1888 Clinton B. Sears, Special Orders, June 25, 1888 Clinton B. Sears, Special Orders, May 10, 1888 Clinton B. Sears, Special Orders, May 2, 1888 Clinton B. Sears, Special Orders, May 21, 1888 Clinton B. Sears, Special Orders, May 4, 1888 Clinton B. Sears, Special Orders, May 9, 1888 Coal Consumption in Public Buildings, undated [1893] Col. A. F. Rockwell to Thomas Lincoln Casey, November 11, 1880 Col. Ludlow to Thomas Lincoln Casey, June 22, 1888 Col. William Ludlow to Thomas Lincoln Casey, June 29, 1888 Col. Wood to Thomas Lincoln Casey, November 23, 1886 Col. [William] C. Church to Thomas Lincoln Casey, June 20, 1888 Col. [William] Ludlow to Thomas Lincoln Casey, June 22, 1888 Collingwood to Thomas Lincoln Casey , December 29, 1886 Colonel A. A. Humphreys to Thomas Lincoln Casey, April 20, 1870 Colonel A. Piper to Thomas Lincoln Casey, September 30, 1878 Colonel Asa Bird Gardner to Thomas Lincoln Casey, April 13, 1875 Colonel Benet to Thomas Lincoln Casey, December 1875 Colonel Bleddyn Powell to Thomas Lincoln Casey, April 11, 1894 Colonel C. Seaforth Stewart to Thomas Lincoln Casey, February 24, 1875 Colonel C. Seaforth Stewart to Thomas Lincoln Casey, July 6, 1868 Colonel C. Seaforth Stewart to Thomas Lincoln Casey, March 10, 1873 Colonel C. Seaforth Stewart to Thomas Lincoln Casey, March 28, 1871 Colonel C. Seaforth Stewart to Thomas Lincoln Casey, November 27, 1868 Colonel C. Seaforth Stewart to Thomas Lincoln Casey, September 18, 1868 Colonel C. Seaworth Stewart to Thomas Lincoln Casey, June 8, 1871 Colonel C. Seaworth Stewart to Thomas Lincoln Casey, May 23, 1871