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 Admiral Silas Casey to Thomas Lincoln Casey, June 1, 1895 Admiral Silas Casey to Thomas Lincoln Casey, June 2, 1875 Admiral Silas Casey to Thomas Lincoln Casey, June 20, 1881 Admiral Silas Casey to Thomas Lincoln Casey, June 23, 1894 Admiral Silas Casey to Thomas Lincoln Casey, March 1, 1888 Admiral Silas Casey to Thomas Lincoln Casey, March 13, 1882 Admiral Silas Casey to Thomas Lincoln Casey, March 14, 1872 Admiral Silas Casey to Thomas Lincoln Casey, March 14, 1875 Admiral Silas Casey to Thomas Lincoln Casey, March 19, 1882 Admiral Silas Casey to Thomas Lincoln Casey, March 21, 1882 Admiral Silas Casey to Thomas Lincoln Casey, March 23, 1875 Admiral Silas Casey to Thomas Lincoln Casey, March 29, 1875 Admiral Silas Casey to Thomas Lincoln Casey, March 31, 1882 Admiral Silas Casey to Thomas Lincoln Casey, March 4, 1882 Admiral Silas Casey to Thomas Lincoln Casey, March 4, 1895 Admiral Silas Casey to Thomas Lincoln Casey, March 7, 1882 Admiral Silas Casey to Thomas Lincoln Casey, May 19, 1895 Admiral Silas Casey to Thomas Lincoln Casey, May 27, 1875 Admiral Silas Casey to Thomas Lincoln Casey, May 6, 1872; Admiral Silas Casey to Thomas Lincoln Casey, May 25, 1872 Admiral Silas Casey to Thomas Lincoln Casey, May 8, 1895 Admiral Silas Casey to Thomas Lincoln Casey, November 14, 1882 Admiral Silas Casey to Thomas Lincoln Casey, November 2, 1882 Admiral Silas Casey to Thomas Lincoln Casey, October 11, 1894