Thomas Lincoln Casey to Joseph D. Cannon, January 12, 1889, copy

Thomas Lincoln Casey to Joseph D. Sayers, February 1, 1895, copy

Thomas Lincoln Casey to Joseph D. Sayers, January 23, 1895, copy

Thomas Lincoln Casey to Julia Casey, May 19, 1888

Thomas Lincoln Casey to M. J. Durham, February 8, 1889

Thomas Lincoln Casey to M. J. Durham, February 8, 1889, draft

Thomas Lincoln Casey to Major Nathaniel Michler, undated [June 1876]

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

Thomas Lincoln Casey to Major [Henry] L. Abbot, May 22, 1873

Thomas Lincoln Casey to Mayor Seth Low, February 21, 1883, copy

Thomas Lincoln Casey to Mayor Seth Low, February 7, 1883, copy

Thomas Lincoln Casey to Mayor Seth Low, March 5, 1883

Thomas Lincoln Casey to Mayor Seth Low, November 27, 1882, copy

Thomas Lincoln Casey to Mayor [William Russell] Grace, November 20, 1882, telegram copy

Thomas Lincoln Casey to Miss Randolph, undated

Thomas Lincoln Casey to Mr. Catchings, January 21, 1895, copy

Thomas Lincoln Casey to Mr. Jones, May 13, 1880

Thomas Lincoln Casey to Mr. Ward, August 6, 1894, copy

Thomas Lincoln Casey to Mr. Winthrop, undated, draft

Thomas Lincoln Casey to Mrs. Sines, undated

Thomas Lincoln Casey to [George H]. Elliot, February 7, 1882.; [George H. Elliot] to Thomas Lincoln Casey, undated

Thomas Lincoln Casey to [Henry] M. Adams, September 7, 1894, draft

Thomas Lincoln Casey to [illegible], undated

Thomas Lincoln Casey to [James] C. Duane, September 8, 1887, copy

Thomas Lincoln Casey to [James] C. Duane, September 8, 1887, copy

Thomas Lincoln Casey to [John] D. Brandt, October 27, 1873; [John] D. Brandt to Thomas Lincoln Casey

Thomas Lincoln Casey to [Joseph] Wilson, undated

Thomas Lincoln Casey to [Larkin G.] Mead, August 27, 1882, copy

Thomas Lincoln Casey to [Mayor Seth Low], January 12, 1883, copy

Thomas Lincoln Casey to [Robert Herrick] Hunt, July 17, 1893, telegram

Thomas Lincoln Casey to [Robert Todd Lincoln], July 18, 1881, draft

Thomas Lincoln Casey to [Samuel] C. Cobb, February 17, 1882, copy

Thomas Lincoln Casey to [Ulysses S. Grant], January 15, 1875, copy; Thomas Lincoln Casey to [William W. Belknap], January 11, 1875, copy

Thomas Lincoln Casey to [unknown] Captain, June 26, 1888, copy

Thomas Lincoln Casey to [unknown] General, July 2, 1872

Thomas Lincoln Casey to [unknown] June 26, 1888, copy

Thomas Lincoln Casey to [William P.] Craighill, undated [July 11, 1881], draft

Thomas Lincoln Casey to [William Wilson] Corcoran, undated, draft

Thomas Lincoln Casey to [William] D. Washburn, January 27, 1894

Thomas Lincoln Casey to [William] P. Craighill, March 4, 1892, copy

Thomas Lincoln Casey to [William] T. Barnard, March 6, 1876, draft

Thomas Lincoln Casey, copy of endorsement on Earth bids, December 11, 1886

Thomas Lincoln Casey, February 6, 1876; February 7, 1876

Thomas Lincoln Casey, First proof of Journey, January 10, 1874

Thomas Lincoln Casey, Heights of various structures, 1882

Thomas Lincoln Casey, Jr. Report, December 23, 1878

Thomas Lincoln Casey, Jr. Report, November 22, 1878

Thomas Lincoln Casey, Jr. to Emma Weir Casey March 11, 1888

Thomas Lincoln Casey, Jr. to Emma Weir Casey, April 1, 1883

Thomas Lincoln Casey, Jr. to Emma Weir Casey, April 13, 1879