Peter C. Hains to Thomas Lincoln Casey, January 19, 1895

Peter C. Hains to Thomas Lincoln Casey, March 27, 1888

Peter C. Hains to Thomas Lincoln Casey, November 11, 1868

Peter C. Hains to Thomas Lincoln Casey, November 23, 1868

Peter Hains to Thomas Lincoln Casey, November 29, 1894

Peter Harris to Thomas Lincoln Casey, October 13, 1894

Pettit & Dripps to Thomas Lincoln Casey, July 7, 1881

Phil Cook to Thomas Lincoln Casey, undated [1880]

Philetus Sawyer to Thomas Lincoln Casey, May 13, 1892

Philip M. Price to Thomas Lincoln Casey, March 25, 1889

Philip Price to Thomas Lincoln Casey, March 18, 1889

Plants delivered [to Senators], undated [1878]

Power of Attorney: General Silas Casey to Thomas Lincoln Casey, July 23, 1855

Prentiss to Thomas Lincoln Casey, January 25, 1888

President's Gallery, Admit Bearer, March 4, 1881

Previous at different levels of the Foundation, undated

Professor Blanchard to Thomas Lincoln Casey, January 1894, draft

Professor Dennis H. Mahan to Thomas Lincoln Casey to Thomas Lincoln Casey, March 31, 1871

Professor Dennis H. Mahan to Thomas Lincoln Casey, April 13, 1871

Professor Dennis H. Mahan to Thomas Lincoln Casey, April 6, 1871

Professor H. L. Kendrick to Thomas Lincoln Casey, June 21, 1872

Professor J. B. Wheeler to Thomas Lincoln Casey, June 14, 1872

Professor Robert W. Weir to Thomas Lincoln Casey, April 8, 1872

Professor S. E. Tillman to Thomas Lincoln Casey, May 10, 1889

Professor S. E. Tillman to Thomas Lincoln Casey, May 6, 1889

Professor [Dennis] H. Mahan to Thomas Lincoln Casey, March 15, 1871

Professor [George] F. Andrews to Thomas Lincoln Casey, July 13, 1882

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