Henry M. Robert to Thomas Lincoln Casey, March 23, 1888

Henry M. Robert to Thomas Lincoln Casey, May 24, 1893

Henry Melville to Thomas Lincoln Casey, April 25, 1893

Henry Melville to Thomas Lincoln Casey, June 12, 1893

Henry Melville to Thomas Lincoln Casey, June 13, 1893

Henry Melville to Thomas Lincoln Casey, May 4, 1893

Henry Romeike to Thomas Lincoln Casey, December 8, 1893

Henry Romeike to Thomas Lincoln Casey, February 12, 1889

Henry Turner to Thomas Lincoln Casey, April 6, 1894

Henry W. Hodge to Thomas Lincoln Casey, July 9, 1893, telegram

Henry Weir to Emma Casey, February 8, 1892, telegram

Henry Weir to Thomas Lincoln Casey, April 15, 1892

Henry Weir to Thomas Lincoln Casey, March 2, 1886

Henry Weir to Thomas Lincoln Casey, March 27, 1893

Henry Weir to Thomas Lincoln Casey, March 27, 1894

Henry Wise Garnett to Thomas Lincoln Casey, December 19, 1881

Henry Woodard to Thomas Lincoln Casey, November 16, 1893

Herbert Sturgis to Thomas Lincoln Casey, January 17, 1893

Holabred to Thomas Lincoln Casey, May 6, 1889

Homer H. Stewart to Thomas Lincoln Casey, November 2, 1855

Hon. Edwin M. Stanton to Thomas Lincoln Casey, December 30, 1864

Hon. Edwin M. Stanton to Thomas Lincoln Casey, July 19, 1865

Hon. Edwin M. Stanton to Thomas Lincoln Casey, June 28, 1865

Hon. Evarts to Thomas Lincoln Casey, December 29, 1886

Hon. John Lynch to Thomas Lincoln Casey, July 31, 1868

Hon. P. T. Turnley to Thomas Lincoln Casey, August 19, 1893

Hon. Samuel J. Randall to Thomas Lincoln Casey, August 22, 1878

Horace Porter to Thomas Lincoln Casey, May 10, 1892

Horace Porter to Thomas Lincoln Casey, May 5, 1892

Horatio C. King to Thomas Lincoln Casey, February 19, 1892

Horatio C. King to Thomas Lincoln Casey, February 2, 1892

Horatio G. King to Thomas Lincoln Casey, February, 1894

Horatio G. King to Thomas Lincoln Casey, January 26, 1894

Horatio G. King to Thomas Lincoln Casey, January 28, 1894

Horatio King to Thomas Lincoln Casey, February 4, 1893

Horatio King to Thomas Lincoln Casey, November 10, 1893

Horatio King to Thomas Lincoln Casey, November 13, 1882

Horatio [G.] King to Thomas Lincoln Casey, December 19, 1894

House of Representatives Bill H. R. 5087

Houston to Thomas Lincoln Casey, November 4, 1886

Hugh Hagan to Thomas Lincoln Casey, January 10, 1870, receipt

I & M. T. Levitt to Thomas Lincoln Casey, April 4, 1859

Imp. & Royal Austro-Hungarian Legation to Thomas Lincoln Casey, October 5, 1893

Indenture, Robert W. Watson to Thomas Lincoln Casey, January 2, 1889

Indenture, Robert W. Watson to Thomas Lincoln Casey, January 2, 1889, draft

Inscription on Apex, Washington Monument, undated

Institution of Civil Engineers to Thomas Lincoln Casey, January 7, 1892

H. A. Rowland and Simon Newcomb to Thomas Lincoln Casey, July 3, 1885

H. Baynton Zevely to Thomas Lincoln Casey; A. N. Zevely to Thomas Lincoln Casey, May 8, 1875

H. C. Corbin to Thomas Lincoln Casey, May 13, 1882