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

Invitation from the President's Troop to Thomas Lincoln Casey, May 26, 1892

Invitation to Thomas Lincoln Casey, April 1893

J. A. Judson to Thomas Lincoln Casey, August 22, 1871

J. A. Judson to Thomas Lincoln Casey, December 11, 1874

J. A. Judson to Thomas Lincoln Casey, February 14, 1873

J. A. Judson to Thomas Lincoln Casey, February 21, 1872

J. A. Judson to Thomas Lincoln Casey, May 21, 1873

J. A. Judson to Thomas Lincoln Casey, May 27, 1873

J. A. Judson to Thomas Lincoln Casey, November 12, 1875

J. A. Judson to Thomas Lincoln Casey, November 21, 1875

J. A. Judson to Thomas Lincoln Casey, October 17, 1871

J. A. Walker to Thomas Lincoln Casey, March 12, 1873

J. B. F. Navarre to Thomas Lincoln Casey, June 17, 1895

J. B. Weir to Thomas Lincoln Casey, June 6, 1888

J. B. Wheeler to Colonel William P. Craighill, May 29, 1876; Colonel William P. Craighill to Thomas Lincoln Casey, May 30, 1876

J. B. White & Brothers and Howard Fleming to Thomas Lincoln Casey, March 20, 1880

J. C. Bancroft Davis to Thomas Lincoln Casey, undated

J. C. Benson to Thomas Lincoln Casey, July 8, 1872

J. C. Fargo to Thomas Lincoln Casey, December 2, 1856

J. C. Fargo to Thomas Lincoln Casey, February 7, 1857

J. C. Fargo to Thomas Lincoln Casey, January 7, 1857

J. C. Fargo to Thomas Lincoln Casey, November 17, 1856

J. C. Gilmore/War Department to Thomas Lincoln Casey, May 28, 1894

J. C. Mallory to Thomas Lincoln Casey, August 4, 1894, copy

J. C. Post to Thomas Lincoln Casey, November 1, 1893

J. C. Post to Thomas Lincoln Casey, November 17, 1893

J. C. Post to Thomas Lincoln Casey, November 4, 1893

J. C. Robinson to Thomas Lincoln Casey, November 15, 1895

J. C. Warnock to Thomas Lincoln Casey, June 25, 1873

J. D. Bringham to Thomas Lincoln Casey, June 3, 1874

J. D. Hertz to Thomas Lincoln Casey, February 5, 1873

J. D. Ingersoll to Thomas Lincoln Casey, December 28, 1878

J. Davenport to Thomas Lincoln Casey, May 10, 1858

J. E. Hilgard to Thomas Lincoln Casey, April 26, 1882

J. E. Hilgard to Thomas Lincoln Casey, August 1, 1871

J. E. Hilgard to Thomas Lincoln Casey, January 12, 1871

J. E. Hilgard to Thomas Lincoln Casey, March 1873

J. E. Hilgard to Thomas Lincoln Casey, May 12, 1882

J. E. Turtle to Thomas Lincoln Casey, October 5, 1894

J. E. [illegible] to Thomas Lincoln Casey, June 1871

J. F. Colburn to Thomas Lincoln Casey, October 24, 1873

J. F. Rogers to Thomas Lincoln Casey, October 27, 1886

J. Floyd King to Thomas Lincoln Casey, February 2, 1885

Francis Miller to Thomas Lincoln Casey, October 11, 1886