O. L. Pruden to Thomas Lincoln Casey, June 10, 1892 O. L. Pruden to Thomas Lincoln Casey, May 8, 1895 O. L. Pruden to Thomas Lincoln Casey, November 2, 1895 O. M. Carter to Thomas Lincoln Casey, April 1, 1889 O. M. Carter to Thomas Lincoln Casey, June 2, 1889 O. M. Carter to Thomas Lincoln Casey, June 8, 1889 O. M. Carter to Thomas Lincoln Casey, June 9, 1889 Obelisk - calculations for weight, etc., undated Office of Building for State War and Navy Departments - Washington Monument Payment Refunds, November 7, 1887 Office of the Light House Board to Thomas Lincoln Casey, February 28, 1888 Office of the Light-House Board to Thomas Lincoln Casey, April 13, 1888 Office of the Light-House Board to Thomas Lincoln Casey, April 19, 1889 Office of the Light-House Board to Thomas Lincoln Casey, April 28, 1888 Office of the Light-House Board to Thomas Lincoln Casey, February 10, 1888 Office of the Light-house Board to Thomas Lincoln Casey, February 20, 1889 Office of the Light-House Board to Thomas Lincoln Casey, January 10, 1889 Office of the Light-House Board to Thomas Lincoln Casey, January 26, 1888 Office of the Light-House Board to Thomas Lincoln Casey, January 3, 1888 Office of the Light-House Board to Thomas Lincoln Casey, January 30, 1889 Office of the Light-House Board to Thomas Lincoln Casey, June 5, 1888 Office of the Light-house Board to Thomas Lincoln Casey, March 1, 1889 Office of the Light-house Board to Thomas Lincoln Casey, March 15, 1889 Office of the Light-House Board to Thomas Lincoln Casey, March 17, 1888 Office of the Light-House Board to Thomas Lincoln Casey, March 31, 1888 Office of the Light-House Board to Thomas Lincoln Casey, May 10, 1888 Office of the Light-House Board to Thomas Lincoln Casey, May 29, 1888 Office of the National Wire Mattress Co. to Thomas Lincoln Casey, July 16, 1895 Office of the Public Printer to Thomas Lincoln Casey, July 2, 1895 Office of the Public Printer to Thomas Lincoln Casey, July 3, 1895 Officers of a European Squadron, undated Olcott & Olcott to Thomas Lincoln Casey, March 4, 1892 Olcott & Olcott to Thomas Lincoln Casey, March 8, 1892 On file in the War Department, undated Orlando M. McPherson to Thomas Lincoln Casey, March 31, 1895 Orlando M. Poe to Thomas Lincoln Casey, June 26, 1892 Orville E. Babcock to Honorable Hannibal Hamlin, March 16, 1874 P. A. Breen to General [A. A.] Humphreys, October 13, 1870 Memorandum about monthly work on Public Buildings & Grounds, undated [1878] Memorandum about [illegible] of Monument Commission, undated Memorandum concerning Elevator Engine and its velocity + power, undated Memorandum Concerning Frame Work, undated Memorandum concerning Lightning Rods, undated Memorandum concerning the Monumental Column to be Erected at Yorktown, Virginia, July 15, 1880 Memorandum for Lt. Kurtz, undated Memorandum from H. K. Thurber & Co., May 18, 1872 Memorandum from Thomas Lincoln Casey, December 30, 1886 Memorandum funds, 1878-1879 Memorandum of Cost of Lamp Posts, undated Memorandum of dyke of basin, undated [1878] Memorandum of Enclosures from Thomas Lincoln Casey, December 31, 1886