M. Vetillart to Thomas Lincoln Casey, May 8, 1894

Magurder & [illegible] to Thomas Lincoln Casey, undated [1878]

Maj. [John] W. Barlow to Thomas Lincoln Casey, August 22, 1881

Major Amos Stickney to Thomas Lincoln Casey, October 27, 1868

Major C. Seaworth Stewart to Thomas Lincoln Casey, April 20, 1871

Major Charles F. Powell to Thomas Lincoln Casey, July 16, 1895

Major D. P. Heap to Thomas Lincoln Casey, May 12, 1893

Major General J. L. Chamberlain, January 25, 1882, circular

Major General [Godfrey] Weitzel to Thomas Lincoln Casey, January 2, 1882

Major George H. Elliot to Thomas Lincoln Casey, December 29, 1870

Major George H. Elliot to Thomas Lincoln Casey, February 19, 1873

Major George H. Elliot to Thomas Lincoln Casey, February 5, 1870 (1)

Major George H. Elliot to Thomas Lincoln Casey, February 5, 1870 (2)

Major George H. Elliot to Thomas Lincoln Casey, January 1870 (1)

Major George H. Elliot to Thomas Lincoln Casey, January 1870 (2)

Major George H. Elliot to Thomas Lincoln Casey, January 21 1870

Major George H. Elliot to Thomas Lincoln Casey, January 29, 1873

Major George H. Elliot to Thomas Lincoln Casey, January 6, 1870

Major George H. Elliot to Thomas Lincoln Casey, January 8, 1874

Major George H. Elliot to Thomas Lincoln Casey, July 1872 (1)

Major George H. Elliot to Thomas Lincoln Casey, July 1872 (2)

Major George H. Elliot to Thomas Lincoln Casey, July 28, 1870

Major George H. Elliot to Thomas Lincoln Casey, July 5, 1870

Major George H. Elliot to Thomas Lincoln Casey, July 9, 1870

Major George H. Elliot to Thomas Lincoln Casey, June 29, 1868

Major George H. Elliot to Thomas Lincoln Casey, June 9,1870

Major George H. Elliot to Thomas Lincoln Casey, May 24, 1870

Major George H. Elliot to Thomas Lincoln Casey, undated [1873]

Major Harwood to Thomas Lincoln Casey, November 13, 1872

Major Henry M. Robert to Thomas Lincoln Casey, June 2, 1871

Major J. W. King to Thomas Lincoln Casey, December 1871

No. 2: Major [William] P. Craighill to Captain C. P. Patterson , June 19, 1872, copy

No. 3: C. S. Peirce to Major William P. Craighill, June 20, 1872, copy

No. 4: William P. Craighill to C. S. Peirce, June 21, 1872, copy

North British & Mercantile Ins. Co. to Thomas Lincoln Casey, February 12, 1880

Note - "Sic vas non vobis" undated

Note - "The service which we owe" undated

Note re: sculptures for the Library of Congress Building, undated [August 1894]

Note: Letters from Thomas and Silas Casey

Note: Letters from T. L. Casey

Note: Letters from Thomas Lincoln Casey to his Father

Note: Letters received from Thomas L. Casey while

Notes on interior shape from Swing of Monument, undated

Notes on Monument Crane, undated

Notes on Project for a Marble Pyramidion for the Washington Monument, April 4, 1884

Notes, sketch of cracks in foundation of the Washington Monument, undated

Notification of failure to pay a loan, April 1, 1895

NY Athletic Club to Thomas Lincoln Casey, January 16, 1888

NY Genealogical and Biographical Society to Thomas Lincoln Casey, May 25, 1889

O. Ferriss to Thomas Lincoln Casey, July 12, 1882