Thomas Greene to Thomas Lincoln Casey, June 10, 1872 Thomas Greene to Thomas Lincoln Casey, June 8, 1872 Thomas Greene to Thomas Lincoln Casey, March 17, 1859 Thomas Greene to Thomas Lincoln Casey, October 22, 1856 Thomas Greene to Thomas Lincoln Casey, postscript Ed A. Casey to Thomas Lincoln Casey, August 9, 1870 Thomas H. Montgomery to Thomas Lincoln Casey, April 27, 1888 Thomas Harvey to Thomas Lincoln Casey, January 8, 1870, receipt Thomas Howell to Thomas Lincoln Casey, April 16, 1872 Thomas J. Geary to Thomas Lincoln Casey, December 8, 1893 Thomas J. Gould to Thomas Lincoln Casey, April 16, 1889 Thomas J. Gould to Thomas Lincoln Casey, April 24, 1889 Thomas J. Gould to Thomas Lincoln Casey, April 9, 1889 Thomas J. Gould to Thomas Lincoln Casey, February 27, 1886 Thomas J. Gould to Thomas Lincoln Casey, March 1, 1886 Thomas J. Gould to Thomas Lincoln Casey, March 22, 1886 Thomas J. Gould to Thomas Lincoln Casey, March 26, 1886 Thomas J. Gould to Thomas Lincoln Casey, March 5, 1886 Thomas J. Haynes to Major Samuel Wood, January 31, 1866, copy Thomas J. Peirce to Thomas Lincoln Casey, June 3, 1889 Thomas L. Gould to Thomas Lincoln Casey, May 18, 1875 Thomas Lincoln Casey to Colonel George H. Elliot, June 1870 Thomas Lincoln Casey to Rufus E. Lester, February 5, 1892, copy of telegram Thomas Lincoln Casey - Accounts, March 7, 1882 Thomas Lincoln Casey - Angle calculations and sketches, undated Thomas Lincoln Casey - Calculations, January 20, 1878 Thomas Lincoln Casey - Calculations, undated Thomas Lincoln Casey - Copy of Inventory and Appraisement of Estate of General Silas Casey, March 6, 1882 Thomas Lincoln Casey - Crane calculations, sketch, undated (1) Thomas Lincoln Casey - Crane calculations, sketch, undated (2) Thomas Lincoln Casey - Crane calculations, sketch, undated (3) Thomas Lincoln Casey - Crane calculations, sketch, undated (4) Thomas Lincoln Casey - Crane calculations, sketch, undated (5) Thomas Lincoln Casey - Estimations, undated Thomas Lincoln Casey - Math Notes, undated Thomas Lincoln Casey - Math Notes, undated (2) Thomas Lincoln Casey - Memorandum concerning Washington Monument Colunade, undated Thomas Lincoln Casey - Memorandum concerning Washington Monument, undated Thomas Lincoln Casey - Memorandum of Clay, undated Thomas Lincoln Casey - Monument height notes, undated Thomas Lincoln Casey - Notes concerning the extension of the dam at Great Falls, February 11, 1882 Thomas Lincoln Casey - Notes, calculations, undated (1) Thomas Lincoln Casey - Notes, calculations, undated (2) Thomas Lincoln Casey - Notes, undated Thomas Lincoln Casey - Sketch, calculations, undated Thomas Lincoln Casey - Sketch, east, undated Thomas Lincoln Casey - sketch, undated Thomas Lincoln Casey admission notes, September 1, 1875 Thomas Lincoln Casey appointment notes, September 1875 Thomas Lincoln Casey appointment notes, undated [September 1875] Thomas Lincoln Casey Diary, 1888-1889, 01, front cover