C. N. Caspar to Thomas Lincoln Casey, September 3, 1895 C. N. Crane to Thomas Lincoln Casey, January 25, 1888 C. P. Coggeshall to Thomas Lincoln Casey, December 10, 1893 C. P.Coggeshall to Thomas Lincoln Casey, December 17, 1893 C. Quackenbush to Thomas Lincoln Casey, October 19, 1893 C. R. Miller to Thomas Lincoln Casey, May 6, 1889 C. R. P. Rogers to Thomas Lincoln Casey, July 10, 1872 C. R. Suter to Thomas Lincoln Casey, March 9, 1894 C. S. Simpson to Thomas Lincoln Casey, January 10, 1870, receipt C. Seaforth Stewart to Thomas Lincoln Casey, April 6, 1875 C. Stone to Thomas Lincoln Casey, January 12, 1880 C. W. Jones to Thomas Lincoln Casey, undated [1880] C. W. Raymond to Thomas Lincoln Casey, April 5, 1895 C. W. Raymond to Thomas Lincoln Casey, August 7, 1894 C. W. Raymond to Thomas Lincoln Casey, December 13, 1893 C. W. Raymond to Thomas Lincoln Casey, February 7, 1894 C. W. Raymond to Thomas Lincoln Casey, July 24, 1894 C. W. Raymond to Thomas Lincoln Casey, March 10, 1895 C. W. Raymond to Thomas Lincoln Casey, May 9, 1895 C. W. Romney to Thomas Lincoln Casey, December 8, 1878 C. Warren to Thomas Lincoln Casey, 1873 C. [Seaforth Stewart] to Thomas Lincoln Casey, October 25, 1872 Calculated Available Funds, May 1, 1894 Calculated distances between corners, September 16, 1880 Calculation Mag. 9. 7 Weight of new part of Monument, undated Calculation of Ordinates from corners, October 8, 1880 Calculation of Weight of 50 ft Sections of Monument, undated Calculation of Weight of Foundation, undated Calculations concerning Top, undated Calculations of Stability of Upper Part of Obelisk, undated Calvin S. Brice to Thomas Lincoln Casey, March 9, 1894 Campbell to Thomas Lincoln Casey, May 3, 1873 Candidates for admission, September 1, 1875 Capt Royal T. Frank to Martin ; Martin to Thomas Lincoln Casey, February 18, 1872 Capt [John] W. Barlow to Thomas Lincoln Casey, March 20, 1872 Capt [Robert N.] Scott to Thomas Lincoln Casey, January 17, 1872 Capt. G. J. Fiebeger to Thomas Lincoln Casey, May 8, 1895 Capt. [William] T. Rossell To Thomas Lincoln Casey, June 20, 1888 Captain Bowman McCalla to Thomas Lincoln Casey, October 20, 1886 Captain Bradley to Thomas Lincoln Casey, December 1, 1875 Captain Charles W. Raymond to Thomas Lincoln Casey, October 31, 1870 Captain David P. Heap to Thomas Lincoln Casey, April 19, 1876 Captain David P. Heap to Thomas Lincoln Casey, April 24, 1876 Captain David P. Heap to Thomas Lincoln Casey, June 14, 1876 Captain David P. Heap to Thomas Lincoln Casey, October 12, 1876 Captain David P. Heap to Thomas Lincoln Casey, October 2, 1875 Captain David P. Heap to Thomas Lincoln Casey, October 3, 1876 Captain David P. Heap to Thomas Lincoln Casey, September 30, 1876 Captain David P. Heap to Thomas Lincoln Casey, September 9, 1876 Captain Davis to Thomas Lincoln Casey, November 29, 1893