Thomas Lincoln Casey to William P. Frye, January 21, 1895, draft

Thomas Lincoln Casey to William Pierce Frye, September 8, 1893, draft

Thomas Lincoln Casey to Winslow Warren, February 28, 1894

Thomas Lincoln Casey to Winslow Warren, March 5, 1894

Thomas Lincoln Casey to Wolcott Gibbs, November 21, 1895

Thomas Lincoln Casey to [Florida G. Casey] undated [July 1886]

Thomas Lincoln Casey to [General George] Bell, undated [February 1881], draft

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

Thomas Lincoln Casey, Jr. to Emma Weir Casey, April 15, 1877; HD Wilson to Casey, April 13, 1877

Thomas Lincoln Casey, Jr. to Emma Weir Casey, April 15, 1892

Thomas Lincoln Casey, Jr. to Emma Weir Casey, April 17, 1881

Thomas Lincoln Casey, Jr. to Emma Weir Casey, April 18, 1880

Thomas Lincoln Casey, Jr. to Emma Weir Casey, April 19, 1882

Thomas Lincoln Casey, Jr. to Emma Weir Casey, April 2, 1886

Thomas Lincoln Casey, Jr. to Emma Weir Casey, April 2, 1888

Thomas Lincoln Casey, Jr. to Emma Weir Casey, April 2, 1892

Thomas Lincoln Casey, Jr. to Emma Weir Casey, April 20, 1895

Thomas Lincoln Casey, Jr. to Emma Weir Casey, April 21, 1878

Thomas Lincoln Casey, Jr. to Emma Weir Casey, April 21, 1886

Thomas Lincoln Casey, Jr. to Emma Weir Casey, April 21, 1894

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