R. B. Bowler to Thomas Lincoln Casey, October 12, 1894; copy

R. C. Drum to Thomas Lincoln Casey, April 3, 1888, circular

R. C. Drum to Thomas Lincoln Casey, December 13, 1886, circular

R. C. Drum to Thomas Lincoln Casey, February 8, 1886

R. C. Drum to Thomas Lincoln Casey, January 14, 1889

R. C. Drum to Thomas Lincoln Casey, March 14, 1882

R. C. Drum, July 1, 1882, circular (1)

R. C. Drum, July 1, 1882, circular (2)

R. C. Drum, Special Orders, April 12, 1888

R. C. Drum, Special Orders, June 18, 1888

R. C. Drum, Special Orders, June 19, 1888

R. D. Clark to Thomas Lincoln Casey, October 13, 1873

R. H. Clarke to Thomas Lincoln Casey, February 2, 1893

R. H. Clarke to Thomas Lincoln Casey, January 22, 1894

R. H. Tilley to Thomas Lincoln Casey, April 10, 1893

R. H. Tilley to Thomas Lincoln Casey, January 14, 1892

R. H. Tilley to Thomas Lincoln Casey, January 30, 1893

R. H. Tilley to Thomas Lincoln Casey, January 5, 1893

R. H. Tilley to Thomas Lincoln Casey, July 10, 1895

R. H. Tilley to Thomas Lincoln Casey, October 25, 1886

R. H. Tilley to Thomas Lincoln Casey, October 9, 1882

R. Hammett Tilley to Thomas Lincoln Casey, June 14, 1894

R. L. Gibson to President Grover Cleveland, June 7, 1888

R. L. Gibson to Thomas Lincoln Casey, November 12, 1878

R. Murray to Thomas Lincoln Casey, May 1, 1886

R. N. S. Dunster to Emma, March 7, 1886

R. O. S [?], undated [November 1881]

R. P. Thian to Thomas Lincoln Casey, November 30, 1886

R. Ross Perry to Thomas Lincoln Casey, February 25, 1893

R. Ross Perry to Thomas Lincoln Casey, January 24, 1895

R. S. Chew to Thomas Lincoln Casey, June 1873

R. T. Brown to Thomas Lincoln Casey, June 27, 1892

R. T. W. Duke to Thomas Lincoln Casey, May 10, 1882

R. W. Meade to Thomas Lincoln Casey, April 15, 1886

R. W. Petrikin to Thomas Lincoln Casey, December 22, 1868

R. W. Raymond to Thomas Lincoln Casey, June 24, 1882

R. W. [Lowry] to Thomas Lincoln Casey, February 3, 1892

R. [Illegible]. to Thomas Lincoln Casey, undated [1882]

R. [Rutherford] P. Hayes to Thomas Lincoln Casey, November 29, 1889

Ralph Abercrombie to Thomas Lincoln Casey, May 16, 1893

Randall Baremore to Thomas Lincoln Casey, April 4, 1859

Range of [illegible] at Monument, 1883

Receipt of Shipment to Thomas Lincoln Casey, March 23, 1895

Record of plumb spots carved down to floor, undated

Record of Tests of Portland Cement Company, July 5, 1879

Redfield Proctor to Thomas Lincoln Casey, February 18, 1893

Relative Levels of Goddess of Liberty on Capitol, undated

Report of tests for tensils strength, January 27, 1882

Report of William Dougherty of the expenses of the Monument Foundation, February 7, 1849

Robert Winthrop to Thomas Lincoln Casey, June 6, 1889