Robert W. Weir to Thomas Lincoln Casey, February 9, 1873

Robert W. Weir to Thomas Lincoln Casey, January 18, 1872

Robert W. Weir to Thomas Lincoln Casey, January 28, 1882

Robert W. Weir to Thomas Lincoln Casey, July 15, 1861

Robert W. Weir to Thomas Lincoln Casey, June 13, 1863

Robert W. Weir to Thomas Lincoln Casey, June 18, 1861

Robert W. Weir to Thomas Lincoln Casey, May 24, 1875

Robert W. Weir to Thomas Lincoln Casey, October 20, 1878

Robert W. Weir to Thomas Lincoln Casey, September 29, 1893

Robert W. Weir, Jr. to Thomas Lincoln Casey, October 23, 1893

Robert W. Weir, Jr. to Thomas Lincoln Casey, September 28, 1878

Robert Wallis to Thomas Lincoln Casey, December 15, 1855

Robert Wallis to Thomas Lincoln Casey, November 12, 1855

Robert Weir to Emma Casey, August 15, 1886

Robert Weir to Thomas Lincoln Casey, April 17, 1895

Robert Weir to Thomas Lincoln Casey, August 10, 1883

Robert Weir to Thomas Lincoln Casey, August 3, 1886

Robert Weir to Thomas Lincoln Casey, May 16, 1892

Robert Weir to Thomas Lincoln Casey, September 29, 1886

Robert Winthrop to Thomas Lincoln Casey, June 28, 1881

Robert Winthrop to Thomas Lincoln Casey, June 6, 1889

Robert [Todd] Lincoln to Thomas Lincoln Casey, December 17, 1881

Robert [W.] Weir to Thomas Lincoln Casey, March 22, 1888

Robertson & Blackford to Thomas Lincoln Casey, February 1, 1888

Roger Jones to Thomas Lincoln Casey, July 5, 1878

Rooms of the American Home Missionary Society to Thomas Lincoln Casey, January 23, 1856

Rosa Wright Smith to Thomas Lincoln Casey, July 14, 1894

Roster of Engineers, August 1, 1894, (1)

Roster of Engineers, August 1, 1894, (2)

Roster of Engineers, August 1, 1894, (3)

Rough draft of notes for Memorandum in [illegible] Report, undated

Rough draft of original report on monument, July 27, 1878

Rough of Second Report on Monument Completed, December 13, 1886

Rufus D. Bean to Thomas Lincoln Casey, August 16, 1871

Rufus E. Lister to Thomas Lincoln Casey, February 2, 1894

Rufus Naple to Thomas Lincoln Casey, May 1, 1886, General Lewis Hunt, copy, May 16, 1886

Thomas Gould to Thomas Lincoln , March 12, 1889

Thomas Gould to Thomas Lincoln Casey, January 10, 1872

Thomas Gould to Thomas Lincoln Casey, January 31, 1872

Thomas Gould to Thomas Lincoln Casey, January 8, 1886

Thomas Gould to Thomas Lincoln Casey, July 16, 1872

Thomas Greene to Thomas Lincoln Casey, April 19, 1858

Thomas Greene to Thomas Lincoln Casey, August 26, 1856

Thomas Greene to Thomas Lincoln Casey, August 29, 1856

Thomas Greene to Thomas Lincoln Casey, January 13, 1857

Thomas Greene to Thomas Lincoln Casey, July 13, 1872

Thomas Greene to Thomas Lincoln Casey, July 14, 1856

Thomas Greene to Thomas Lincoln Casey, July 19, 1886

Thomas Greene to Thomas Lincoln Casey, July 26, 1856

Thomas Greene to Thomas Lincoln Casey, July 3, 1856