Stephen A. Northrop to Thomas Lincoln Casey, March 31, 1893

Stephen Wing to Thomas Lincoln Casey, October 20, 1886

Stevens to Thomas Lincoln Casey, March 18, 1874

Stillman Saunders to Thomas Lincoln Casey, January 12, 1888

Stillman Saunders to Thomas Lincoln Casey, March 16, 1889

Stillman Saunders to Thomas Lincoln Casey, May 10, 1888

Stillman Saunders to Thomas Lincoln Casey, May 11, 1889

Stone Cutters + [illegible] Wages Earned, undated

Strength of Columns in Monument + Expansion, undated

Stuyvesant Fish to Edward Wanton Casey, December 22, 1869

Stuyvesant Fish to Edward Wanton Casey, July 28, 1869

Stuyvesant Fish to Edward Wanton Casey, October 18, 1869

Subdivision of Expenditures on "Completion," June 1, 1880

Supplemental Circular, undated [February 1886]

Supreme Court to Thomas Lincoln Casey, May 1, 1874

Susan P. Delafield to Thomas Lincoln Casey, April 12, 1880

Susan P. Delafield to Thomas Lincoln Casey, November 12, 1878

Sutherland to Thomas Lincoln Casey, November 17, 1893

Sutherland to Thomas Lincoln Casey, September 20, 1895

Swineburn, Peckham & Co. to John H. Caswell, June 26, 1865

Sydney S. Rider to Thomas Lincoln Casey, December 15, 1895

Major [William] R. King to Thomas Lincoln Casey, January 3, 1872

Major [William] R. King to Thomas Lincoln Casey, June 10, 1871

Major [William] R. King to Thomas Lincoln Casey, June 17, 1873

Major [William] R. King to Thomas Lincoln Casey, March 7, 1872

Major [William] R. King to Thomas Lincoln Casey, May 19, 1871

Major [William] R. King to Thomas Lincoln Casey, May 24, 1872

Major [William] R. King to Thomas Lincoln Casey, May 8, 1871

Major [William] R. King to Thomas Lincoln Casey, October 9, 1871

Malone Whiliss to Thomas Lincoln Casey, May 31, 1882

Manning to Thomas Lincoln Casey, April 20, 1886

Manuscript, Treasury Department to Thomas Lincoln Casey, February 24, 1894

Marble + Granite in Shaft, undated

Marble Cutter Contract, McClellan, undated

Marcus Benjamin to Thomas Lincoln Casey, June 20, 1889

Maria L. Potter to Thomas Lincoln Casey, October 24, 1886

Maria Laurence to Thomas Lincoln Casey, February 14, 1888

Maria Weir to Thomas Lincoln Casey, November 22, 1886

Marshall to Thomas Lincoln Casey, December 12, 1895, copy (1)

Marshall to Thomas Lincoln Casey, December 12, 1895, copy (2)

Mary B. Hunt to Thomas Lincoln Casey, January 22, 1894

Mary C. Deutschendorff to Thomas Lincoln Casey, November 22, 1895

Mary Casey and Louisa Casey to Thomas Lincoln Casey, June 25 and June 27, 1856

Mary Casey to Thomas Lincoln Casey, April 17, 1858

Mary Casey to Thomas Lincoln Casey, April 28, 1856

Mary Casey to Thomas Lincoln Casey, July 23, 1856

Mary Casey to Thomas Lincoln Casey, Louisa Casey, January 20, 1856

Mary Casey to Thomas Lincoln Casey, October 18, 1856

Mary Casey to Thomas Lincoln Casey, October 3, 1856

Mary Casey, August 18, 1858, check