Washington Monument - Contingent Expenses, undated Washington Monument - Estimates of Expenditures, undated Washington Monument - Water testing report and notes, undated Washington Monument Cost of Plastering, September 8, 1882 Washington Monument Report of James Renwick Jr. and Robert Mills, October 29, 1879 Washington Monument, Resolutions, April 18, 1888 Washingtonia: Memorials of the Death of George Washington, September 18, 1865 Water Supply Comparison of Plans, March 25, 1882 Weight + [illegible] contents of various parts of the [Monument], May 12 Weight of Gearing for raising stove at [Washington National] Monument, July 23, 1850 Weight of Marble, April 21, 1881 Weight, Pressure and Stability of the Washington Monument, undated Western Union Telegraph Company to Thomas Lincoln Casey, September 15, 1895 Whitman to Thomas Lincoln Casey, January 16, 1856 Whitter to General Silas Casey, March 28, 1848 Wilkinson Call to Thomas Lincoln Casey, December 23, 1893 Wilkinson Call to Thomas Lincoln Casey, March 9, 1895 Willard to Thomas Lincoln Casey, March 26, 1889, telegram William A. Mowry to Thomas Lincoln Casey, March 10, 1886 William B. Bate to Thomas Lincoln Casey, December 3, 1894 William B. Webb to Thomas Lincoln Casey, April 23, 1892 William Babcock to Thomas Lincoln Casey, March 4, 1886 William Babcock to Thomas Lincoln Casey, May 24, 1886 William Blackwood to George H. Elliot, December 27, 1865 William Blackwood to George H. Elliot, June 3, 1865 William Blackwood to George H. Elliot, May 29, 1867 William Blackwood to George H. Elliot, September 16, 1864 Thomas Lincoln Casey, Jr. to [Thomas Lincoln Casey] April 4, 1880.1, April 4, 1880 Thomas Lincoln Casey, June 30, 1870, return of instruments Thomas Lincoln Casey, memorandum, April 11, 1876 Thomas Lincoln Casey, memorandum, May 29, 1876 Thomas Lincoln Casey, Memorandum, November 15, 1880 Thomas Lincoln Casey, notes on soil, undated [1878] Thomas Lincoln Casey, notes, August 8, 1876 Thomas Lincoln Casey, notes, July 1, 1878 Thomas M. Vincent to Thomas Lincoln Casey, January 22, 1875 Thomas O'Kill to Thomas Lincoln Casey, October 19, 1859 Thomas P Cleaves to Thomas Lincoln Casey, February 28, 1881 Thomas P. Clark to Thomas Lincoln Casey, February 5, 1889, telegram Thomas P. Gould to Thomas Lincoln Casey, December 30, 1878 Thomas S. Eells, undated, check Thomas Turtle to Thomas Lincoln Casey, May 7, 1889 Thomas Turtle, Special Orders, April 10, 1888 Thomas Turtle, Special Orders, April 13, 1888 Thomas Turtle, Special Orders, April 18, 1888 Thomas Turtle, Special Orders, April 19, 1888 Thomas W. Rae to Thomas Lincoln Casey, April 17, 1882, copy Ticket to the Inaugural Ceremonies, March 4, 1893 Tiffany & Co. to Thomas Lincoln Casey, February 18, 1859 Times taken by various stone cutters in Cutting Same Stone, March 18, 1885