War Department Library to Thomas Lincoln Casey, May 13, 1891 War Department to Bernard R. Green, undated [August 1885] War Department to Thomas Lincoln Casey, September 12, 1885 War Department to [Thomas Lincoln Casey], April 14, 1888 Warren Ackerman to [Frederick] T. Frelinghuysen, May 19, 1884 Warren Ackerman to [Frederick] T. Frelinghuysen, May 19, 1884, copy Washington Aqueduct Tables, July 1881 Washington Aqueduct, Flow of Water for different levels, undated Washington Aqueduct: Discharge of Conduit between the two reservoirs..., March 3, 1882 Washington Aqueduct: Flow of Water in Conduit from Gt Falls to the Distributing Reservoir, February 25, 1882 Washington Aqueduct: Flow of Water in Conduit, undated Washington Aqueduct: Formula for calculating the flow of waterÂ…, May 26, 1881 Washington Gas Light Co. to Thomas Lincoln Casey, October 16, 1884 Washington Market Company vs. The Comissioners, January 1879 Washington Mont, undated [July 18, 1890] Washington Monument - Drawing of Monument, 1844 Washington Monument Levels, August 7, 1891 Washington's Birthplace, Estimate for Wooden Pile Wharf, undated [1882-1884] Water taken from the distributing reservoir, June 27 and June 28, 1881 Watkins & Lewis, December 1890 Webb C. Hayes to Thomas Lincoln Casey, April 1, 1878, telegram Webb C. Hayes to Thomas Lincoln Casey, August 5, 1877 Weight certificate, Washington Monument Drum, July 22, 1850 Weight certificate, Washington Monument Shaft, July 22, 1850 Weight of Iron Columns in Monument, undated West End Hotel, undated [1885] Western Presbyterian Church to Thomas Lincoln Casey, April 13, 1879 White & Bro. to Thomas Lincoln Casey, December 30, 1869 (1) White & Bro. to Thomas Lincoln Casey, December 30, 1869 (2) White & Brother to Thomas Lincoln Casey, October 10, 1877 Whyte & Overman to Thomas Lincoln Casey, April 30, 1884 Wilcox to Thomas Lincoln Casey, August 4, 1877 Wiliam P. Craighill to Thomas Lincoln Casey, July 20, 1887 William A. Maury to Thomas Lincoln Casey, February 4, 1885 William C. Endicott to Thomas Lincoln Casey, April 15, 1885 William C. Endicott to Thomas Lincoln Casey, August 28, 1885 William C. Endicott to Thomas Lincoln Casey, June 8, 1885 William C. Endicott to Thomas Lincoln Casey, September 12, 1885 William C. Endicott to Thomas Lincoln Casey, September 4, 1885 William Cabell to Thomas Lincoln Casey, Februray 15, 1885 William Chiswell Dabney to Thomas Lincoln Casey, May 24, 1879 William D. Washburn to Thomas Lincoln Casey, July [1892] William E. Chandler to Thomas Lincoln Casey, December 2, 1884 William E. McLean to Thomas Lincoln Casey, January 7, 1887; Thomas Lincoln Casey to McLean, January 11, 1887 [Bernard] R. Green to Thomas Lincoln Casey, September 12, 1889 [Bernard] R. Green to Thomas Lincoln Casey, September 16, 1889 [Bernard] R. Green to Thomas Lincoln Casey, September 18, 1889 [Bernard] R. Green to Thomas Lincoln Casey, September 3, 1890 [Bernard] R. Green to Thomas Lincoln Casey, September 4, 1889 [Bernard] R. Green to Thomas Lincoln Casey, September 6, 1889