C. H. Stout/National Bank of the Republic to Thomas Lincoln Casey, January 4, 1892

C. H. Stout/National Bank of the Republic to Thomas Lincoln Casey, July 5, 1893

C. H. Stout/National Bank of the Republic to Thomas Lincoln Casey, June 1, 1892

C. H. Stout/National Bank of the Republic to Thomas Lincoln Casey, June 2, 1893

C. H. Stout/National Bank of the Republic to Thomas Lincoln Casey, March 1, 1893

C. H. Stout/National Bank of the Republic to Thomas Lincoln Casey, May 2, 1893

C. H. Stout/National Bank of the Republic to Thomas Lincoln Casey, May 3, 1892

C. H. Stout/National Bank of the Republic to Thomas Lincoln Casey, September 30, 1893

C. H. Stout/National Bank of the Republic, August 14, 1893

C. J. Key to Thomas Lincoln Casey, January 15, 1875

C. J. Patterson to Thomas Lincoln Casey, April 21, 1874

C. J. Tilley to unknown, July 4, 1874, invitation

C. Larned to Thomas Lincoln Casey, October 17, 1876

C. M. Hedley to Thomas Lincoln Casey, May 4, 1880

C. M. Hendley to Thomas Lincoln Casey, undated [1882]

C. McD Townsend to Thomas Lincoln Casey, April 13, 1889

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