William Blackwood to Thomas Lincoln Casey, September 2, 1862

William Crapo to Thomas Lincoln Casey, January 30, 1880

William D. Whipple to Thomas Lincoln Casey, April 8, 1872

William D. Whipple to Thomas Lincoln Casey, October 1, 1880

William E. Niblack to Thomas Lincoln Casey, January 23, 1886

William F. Reed to Thomas Lincoln Casey, December 25, 1895

William Gilman to Thomas Lincoln Casey, September 3, 1856

William H. Bixby to Thomas Lincoln Casey, August 22, 1887, December 7, 1887, May 29, 1888, copy

William H. Bixby to Thomas Lincoln Casey, March 21, 1889

William H. Browning to Thomas Lincoln Casey, September 4, 1895

William H. Burr to Thomas Lincoln Casey, December 5, 1895

Thomas Lincoln Casey, Jr. to Thomas Lincoln Casey, September 10, 1885

Thomas Lincoln Casey, Jr. to Thomas Lincoln Casey, September 10, 1892

Thomas Lincoln Casey, Jr. to Thomas Lincoln Casey, September 11, 1888

Thomas Lincoln Casey, Jr. to Thomas Lincoln Casey, September 13, 1874

Thomas Lincoln Casey, Jr. to Thomas Lincoln Casey, September 15, 1878

Thomas Lincoln Casey, Jr. to Thomas Lincoln Casey, September 16, 1874

Thomas Lincoln Casey, Jr. to Thomas Lincoln Casey, September 17, 1876; September 18, 1876

Thomas Lincoln Casey, Jr. to Thomas Lincoln Casey, September 19, 1875

Thomas Lincoln Casey, Jr. to Thomas Lincoln Casey, September 2, 1892

Thomas Lincoln Casey, Jr. to Thomas Lincoln Casey, September 2, 1893

Thomas Lincoln Casey, Jr. to Thomas Lincoln Casey, September 20, 1874

Thomas Lincoln Casey, Jr. to Thomas Lincoln Casey, September 22, 1877

Thomas Lincoln Casey, Jr. to Thomas Lincoln Casey, September 22, 1894

Thomas Lincoln Casey, Jr. to Thomas Lincoln Casey, September 24, 1876

Thomas Lincoln Casey, Jr. to Thomas Lincoln Casey, September 24, 1880

Thomas Lincoln Casey, Jr. to Thomas Lincoln Casey, September 26, 1880

Thomas Lincoln Casey, Jr. to Thomas Lincoln Casey, September 27, 1875

Thomas Lincoln Casey, Jr. to Thomas Lincoln Casey, September 27, 1876

Thomas Lincoln Casey, Jr. to Thomas Lincoln Casey, September 27, 1888

Thomas Lincoln Casey, Jr. to Thomas Lincoln Casey, September 28, 1887

Thomas Lincoln Casey, Jr. to Thomas Lincoln Casey, September 29, 1882

Thomas Lincoln Casey, Jr. to Thomas Lincoln Casey, September 3, 1883

Thomas Lincoln Casey, Jr. to Thomas Lincoln Casey, September 3, 1884

Thomas Lincoln Casey, Jr. to Thomas Lincoln Casey, September 3, 1886

Thomas Lincoln Casey, Jr. to Thomas Lincoln Casey, September 30, 1885

Thomas Lincoln Casey, Jr. to Thomas Lincoln Casey, September 5, 1875

Thomas Lincoln Casey, Jr. to Thomas Lincoln Casey, September 5, 1879

Thomas Lincoln Casey, Jr. to Thomas Lincoln Casey, September 7, 1881

Thomas Lincoln Casey, Jr. to Thomas Lincoln Casey, September 7, 1883

Thomas Lincoln Casey, Jr. to Thomas Lincoln Casey, September 7, 1887

Thomas Lincoln Casey, Jr. to Thomas Lincoln Casey, September 7, 1895

Thomas Lincoln Casey, Jr. to Thomas Lincoln Casey, September 9, 1888

Thomas Lincoln Casey, Jr. to Thomas Lincoln Casey, September 9, 1890

Thomas Lincoln Casey, Jr. to Thomas Lincoln Casey/Emma Weir Casey, July 30, 1871

Thomas Lincoln Casey, Jr. to Thomas Lincoln Casey/Emma Weir Casey, September 9, 1874

Thomas Lincoln Casey, Jr. to Thomas Lincoln Casey/Thomas Lincoln Casey, Jr. to Emma Weir Casey/"brother" [unspecified], September 7, 1880

Thomas Lincoln Casey, Jr. to Unaddressed, October 18, 1875

Thomas Lincoln Casey, Jr. to [Thomas Lincoln Casey] April 4, 1880.1, April 4, 1880

Thomas Lincoln Casey, June 30, 1870, return of instruments