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

Russell Sage to Thomas Lincoln Casey, April 24, 1886

Rutherford B. Hayes to Thomas Lincoln Casey, undated [November 1878]

S. Anna Gould to Thomas Lincoln Casey, April 5, 1886

S. B. Elkins to Thomas Lincoln Casey, calling card; May, 1892

S. B. Elkins to Thomas Lincoln Casey, May 27, 1892

S. D. Larnill to Capt. [George] W. Davis, February 24, 1881

S. D. Miller to Mr. Warren, February 13, 1893

S. E. Tillman to Thomas Lincoln Casey, December 18, 1882

S. E. Tillman to Thomas Lincoln Casey, June 11, 1872

S. Fannie Briggs to Thomas Lincoln Casey, undated [1880]

S. H. Hacker to Thomas Lincoln Casey, June 21, 1882

S. H. Kauffmann to Thomas Lincoln Casey, June 10, 1882

S. M. Mansfield to Thomas Lincoln Casey, June 27, 1894

S. P. Langley to Thomas Lincoln Casey, May 18, 1893

S. Polaud to Thomas Lincoln Casey, February 25, 1889

S. Polaud to Thomas Lincoln Casey, February 9, 1889

S. Q. C. Lamar to General Humphrey, February 2, 1876

S. V. Benet to Thomas Lincoln Casey, December 1870

S. V. Benet to Thomas Lincoln Casey, June 1871

Sadie Gould to Thomas Lincoln Casey, September 2, 1882

Sadie L. Gould to Thomas Lincoln Casey, February 1, 1882

Sam Randall to Thomas Lincoln Casey, April 12, 1875 (1)

Sam Randall to Thomas Lincoln Casey, April 12, 1875 (2)

Sam Randall to Thomas Lincoln Casey, February 8, 1889

Samuel C. Cobb to Thomas Lincoln Casey, February 22, 1882

Samuel C. Cobb to Thomas Lincoln Casey, February 24, 1882

Samuel C. Cobb to Thomas Lincoln Casey. February 20, 1882

Samuel M. Matson to Thomas Lincoln Casey, May 17, 1856

Samuel Pierce Clark to Thomas Lincoln Casey, January 4, 1856

Samuel Ward Green to Thomas Lincoln Caseye, May 21, 1895

Samuel Ward Greene to Thomas Lincoln Casey, August 18, 1882

Sarah Burlingame Webster to Thomas Lincoln Casey, June 15, 1895

Sarah Burlingame Webster to Thomas Lincoln Casey, June 26, 1895

Sarah N. Barnswell, undated [1882]

Sarah N. Randolph to Thomas Lincoln Casey, May 12, 1882, telegram

Sarah N. Randolph to Thomas Lincoln Casey, May 19, 1882

Sarah N. Randolph to Thomas Lincoln Casey, May 6, 1882

Savage to Thomas Lincoln Casey, October 5, 1895

Schedule of Cubes of Concrete made for Tests, October 17, 1879

Schedule of Memorial Stones now set in the interim walls of the Washington Monument prior, March 16, 1885

Schedule of Memorial Stones now set in the interim walls of the Washington Monument prior, March 16, 1885.

Scheme [class schedule]

Schuyler Duryee to Thomas Lincoln Casey, April 12, 1892

Scott Werner & Co. to Thomas Lincoln Casey, April 23, 1856

Scott Werner & Co. to Thomas Lincoln Casey, June 7, 1856

Selwyn Z. Borman to Thomas Lincoln Casey, January 28, 1880