Major George H. Elliot to Thomas Lincoln Casey, June 29, 1868

Major George H. Elliot to Thomas Lincoln Casey, June 9,1870

Major George H. Elliot to Thomas Lincoln Casey, May 24, 1870

Major George H. Elliot to Thomas Lincoln Casey, undated [1873]

Major Harwood to Thomas Lincoln Casey, November 13, 1872

Major Henry M. Robert to Thomas Lincoln Casey, June 2, 1871

Major J. W. King to Thomas Lincoln Casey, December 1871

Major James A. Smith to Thomas Lincoln Casey, April 20, 1876

Major James A. Smith to Thomas Lincoln Casey, November 6, 1876

Major James F. Gregory to Thomas Lincoln Casey, June 12, 1888

Major James F. Gregory to Thomas Lincoln Casey, June 22, 1888

Major James F. Gregory to Thomas Lincoln Casey, June 28, 1888

Major Jared A. Smith to Thomas Lincoln Casey, October 22, 1873

Major John M. Wilson to Thomas Lincoln Casey, August 9, 1872

Major John M. Wilson to Thomas Lincoln Casey, March 14, 1871

Major John M. Wilson to Thomas Lincoln Casey, March 27, 1872

Major John W. Barlow to Thomas Lincoln Casey, April 18, 1876

Major L. S. Houston to Thomas Lincoln Casey, March 16, 1872

Major M. W. McFarland to Thomas Lincoln Casey, June 4, 1868

Major Macomb to Thomas Lincoln Casey, June 16, 1873

Major McCook to Thomas Lincoln Casey, May 16, 1876

Major McFarland to Thomas Lincoln Casey, June 22, 1874

Major Peter C. Hains to Thomas Lincoln Casey, May 22, 1875

Major W. Twining to Thomas Lincoln Casey, undated [October 1878]

Major Walter McFarland to Thomas Lincoln Casey, April 14, 1872

Major William R. King to Thomas Lincoln Casey, December 12, 1871 (1)

Major William R. King to Thomas Lincoln Casey, December 12, 1871 (2)

Major William R. King to Thomas Lincoln Casey, November 14, 1873

Major [George H.] Eliott to Thomas Lincoln Casey, April 20, 1872; Bob to Major [George H.] Elliot, April 12, 1872

Major [George H.] Elliot and General [James C.] Duane to Thomas Lincoln Casey, January 19, 1874

Major [George H.] Elliot to Thomas Lincoln Casey, 1873 (1)

Major [George H.] Elliot to Thomas Lincoln Casey, 1873 (2)

Major [George H.] Elliot to Thomas Lincoln Casey, August 14, 1871

Major [George H.] Elliot to Thomas Lincoln Casey, August 1874

Major [George H.] Elliot to Thomas Lincoln Casey, December 12, 1870

Major [George H.] Elliot to Thomas Lincoln Casey, December 6, 1870

Major [George H.] Elliot to Thomas Lincoln Casey, February 19, 1874

Major [George H.] Elliot to Thomas Lincoln Casey, January 25, 1871

Major [George H.] Elliot to Thomas Lincoln Casey, July 1871. (1)

Major [George H.] Elliot to Thomas Lincoln Casey, July 1871. (2)

Major [George H.] Elliot to Thomas Lincoln Casey, July 1871. (3)

Major [George H.] Elliot to Thomas Lincoln Casey, July 1871. (4)

Major [George H.] Elliot to Thomas Lincoln Casey, July 20, 1872

Major [George H.] Elliot to Thomas Lincoln Casey, June 2, 1871. (1)

Major [George H.] Elliot to Thomas Lincoln Casey, June 2, 1871. (2)

Major [George H.] Elliot to Thomas Lincoln Casey, March 28, 1871

Major [George H.] Elliot to Thomas Lincoln Casey, March 7, 1873

Major [George H.] Elliot to Thomas Lincoln Casey, May 1871

Major [George H.] Elliot to Thomas Lincoln Casey, November 30, 1870

Measure of a horizontal section, June 1, 1881