Daniel Lamont to Thomas Lincoln Casey, April 17, 1894

Daniel S. Lamont to Thomas Lincoln Casey, April 13, 1893

Daniel S. Lamont to Thomas Lincoln Casey, August 9, 1894

Daniel S. Lamont to Thomas Lincoln Casey, December 1894 (1)

Daniel S. Lamont to Thomas Lincoln Casey, December 1894 (2)

Daniel S. Lamont to Thomas Lincoln Casey, January 19, 1894

Daniel S. Lamont to Thomas Lincoln Casey, November 11, 1893

Daniel S. Lamont to Thomas Lincoln Casey, October 5, 1893

Daniel S. Lamont to Thomas Lincoln Casey, [Daniel S. Lamont], March 18, 1895

Daniel S. Lamont, [Daniel S. Lamont], to Thomas Lincoln Casey, April 19, 1895

Darin D. Porter to Thomas Lincoln Casey, undated [1880]

Date at which accounts were sent in [Washington Monument], undated

David Fitzgerald to Thomas Lincoln Casey, December 28, 1882

David G. Haskins Jr. to Thomas Lincoln Casey, March 18, 1882

David G. Haskins, Jr. to Thomas Lincoln Casey, December 28, 1886

David G. Haskins, Jr. to Thomas Lincoln Casey, February 13, 1894

David G. Haskins, Jr. to Thomas Lincoln Casey, October 30, 1886

David Greene Haskins, Jr. to Thomas Lincoln Casey, May 12, 1893 (1)

David Greene Haskins, Jr. to Thomas Lincoln Casey, May 12, 1893 (2)

David Haskins Jr. to Thomas Lincoln Casey, November 16, 1886

David P. Heap to Thomas Lincoln Casey, April 3, 1886

David P. Heap to Thomas Lincoln Casey, October 25, 1886

David S. Stanley, U. S. Soldiers' Home to Thomas Lincoln Casey, November 20, 1893

Davis to Thomas Lincoln Casey, August 8, 1895

Colonel [William] P. Craighill to Thomas Lincoln Casey, March 18, 1875

Colonel [William] P. Craighill to Thomas Lincoln Casey, March 21, 1873

Colonel [William] P. Craighill to Thomas Lincoln Casey, May 14, 1874

Colonel [William] P. Craighill to Thomas Lincoln Casey, May 26, 1875

Colonel [William] P. Craighill to Thomas Lincoln Casey, November 16, 1874

Colonel [William] P. Craighill to Thomas Lincoln Casey, November 5, 1875

Colonel [William] P. Craighill to Thomas Lincoln Casey, October 15, 1872 (1)

Colonel [William] P. Craighill to Thomas Lincoln Casey, October 15, 1872 (2)

Colonel [William] P. Craighill to Thomas Lincoln Casey, October 17, 1872

Colonel [William] P. Craighill to Thomas Lincoln Casey, October 21, 1873

Colonel [William] P. Craighill to Thomas Lincoln Casey, October 9, 1875

Colonel [William] P. Craighill to Thomas Lincoln Casey, September 28, 1875

Colonel [Zealous] B. Tower to Thomas Lincoln Casey, May 3, 1873

Commissioner J. A. Williamson to Thomas Lincoln Casey, July 12, 1876

Committee on Appropriations to Thomas Lincoln Casey, November 20, 1893, telegram

Committee on Appropriations to Thomas Lincoln Casey, November 24, 1893, telegram

Comparison of Estimate and Actual time taken in Cutting Pyramidion, March 18, 1885

Computations of Height, November 24, 1879

Concerning Engineer Troops by Thomas Lincoln Casey, February 21, 1874

Concrete Beams Broken, undated [December 1881]

Congress of the United States - House Resolution, March 5, 1880

Congressional Record re: Library of Congress Building

Congressional request, undated [January 1892]

Copy of Endorsements by [S. V. Benet, J.J. Laidley], June 30, 1882

Corporal O'Neill to Thomas Lincoln Casey, July 25, 1894

Corps of Cadets, September 1875