H. N. Wadsworth to Thomas Lincoln Casey, May 23, 1888

H. O. Towles to Thomas Lincoln Casey, October 27, 1893

H. Ryan to Thomas Lincoln Casey, January, 11, 1894

H. S. Brinkerher to Thomas Lincoln Casey, April 23, 1886

H. S. Melcher to Thomas Lincoln Casey, April 7, 1892

H. S. Melcher to Thomas Lincoln Casey, March 25, 1892

H. S. Taber to Thomas Lincoln Casey, December 14, 1893

H. S. Taber to Thomas Lincoln Casey, December 6, 1893

H. S. Taber to Thomas Lincoln Casey, January 18, 1893

H. S. Taber to Thomas Lincoln Casey, May 20, 1892

H. S. Taber to Thomas Lincoln Casey, November 1886

H. T. Crosby to Thomas Lincoln Casey, October 8, 1881

H. T. Crosby to Thomas Lincoln Casey, undated [1880]

H. W. Ford, The National Bank of the Republic to Thomas Lincoln Casey, July 12, 1872

Hallie Bailey to Thomas Lincoln Casey, July 19, 1895

Halsey P. Clarke to Thomas Lincoln Casey, May 13, 1889

Hamilton Fish to Thomas Lincoln Casey, May 13, 1871

Hamilton Fish to Thomas Lincoln Casey, September 14, 1873

Hammond to Thomas Lincoln Casey, October 9, 1876

Harriet M. Casey to Thomas Lincoln Casey, January 10, 1893

Harrington, Genealogical notes, February 18, 1894

Harry Delano Shepard to Thomas Lincoln Casey, December 5, 1893

Harry Dupont to Thomas Lincoln Casey, November 28, 1868

Harry Hunt to Emma Casey, November 29, 1886

Harry Hunt to Thomas Lincoln Casey, April 14, 1892

Harry Hunt to Thomas Lincoln Casey, April 9, 1892

Harry Hunt to Thomas Lincoln Casey, March 13, 1892

Harry Hunt to Thomas Lincoln Casey, May 2, 1892

Harry Hunt to Thomas Lincoln Casey, November 26, 1894

Harry J. Hunt to Thomas Lincoln Casey, March 20, 1886

Harry Weir to Thomas Lincoln Casey, December 27, 1895

Hattie A. Taylor to Thomas Lincoln Casey, February 14, 1881

Hattie to Edward Wanton Casey, October 24, 1866

Height of bottom line above S.W. Corner, undated

Height of [Strasbourg] Cathedral Spire, undated

Heights of important buildings from Die Gartenlaube, Leipzig: E. Keil, 1882; undated [April 1893]

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