Jay Stone to Thomas Lincoln Casey, June 30, 1887

Jay Stone to Thomas Lincoln Casey, November 2, 1888

Jay Stone to Thomas Lincoln Casey, November 3, 1887

Jerry H. Murphy to Thomas Lincoln Casey, May 1, 1890

John A. Baker to Thomas Lincoln Casey, July 22, 1885

John A. Baker to Thomas Lincoln Casey, October 20, 1885

John A. Simms to Thomas Lincoln Casey, May 16, 1878

John A. Simms to Thomas Lincoln Casey, November 9, 1877

John Adams to Thomas Lincoln Casey, January 10, 1878

John Almy To Thomas Lincoln Casey, December 18, 1890

John Almy to Thomas Lincoln Casey, July 22, 1888

John Ambler Smith to Thomas Lincoln Casey, November 21, 1889

John Austin to Thomas Lincoln Casey, February 11, 1885

John B. Hurley to Thomas Lincoln Casey, April 22, 1878

John B. Marble to Thomas Lincoln Casey, August 16, 1892

John B. Peirce to Thomas Lincoln Casey, April 11, 1883

John B. Peirce to Thomas Lincoln Casey, April 16, 1883

John B. Peirce to Thomas Lincoln Casey, February 19, 1883

John B. Peirce to Thomas Lincoln Casey, January 12, 1883

John B. Peirce to Thomas Lincoln Casey, January 19, 1883

John B. Peirce to Thomas Lincoln Casey, June 2, 1883

John B. Peirce to Thomas Lincoln Casey, June 21, 1883

John B. Peirce to Thomas Lincoln Casey, June 4, 1883

John B. Peirce to Thomas Lincoln Casey, June 8, 1883

John B. Pierce to Thomas Lincoln Casey, February 9, 1884

John B. Pierce to Thomas Lincoln Casey, January 29, 1884

John Beattie to Col. D.C. Houston, January 31, 1891

John Bogart to Thomas Lincoln Casey, April 16, 1890

John Bogart to Thomas Lincoln Casey, December 3, 1885

John Bogart to Thomas Lincoln Casey, February 18, 1885

John Bogart to Thomas Lincoln Casey, January 5, 1883

John Bogart to Thomas Lincoln Casey, June 26, 1884

John Bogart to Thomas Lincoln Casey, March 27, 1885

John Bogart, American Society of Civil Engineers to Thomas Lincoln Casey, March 20, 1884

John C. Goodridge to W. W. Corcoran, February 10, 1885, copy

John C. Houk to Thomas Lincoln Casey, January 23, 1893; John C. Houk to T. S. Godfrey, January 21, 1893 [copy]; John Houk to Stephen D. Elkins, undated [transcription]

John C. Houk to [Stephen] B. Elkins, January 16, 1893

John C. Houk to [Stephen] B. Elkins, January 21, 1893 (1)

Henry L. Abbot to Thomas Lincoln Casey, October 31, 1890

Henry L. Abbot to Thomas Lincoln Casey, October 9, 1890

Henry L. Abbot to Thomas Lincoln Casey, September 24, 1888

Henry L. Abbot to Thomas Lincoln Casey, September 28, 1889

Henry L. Abbott to Thomas Lincoln Casey, January 12, 1891

Henry M. Adams to Col. [William P.] Craighill, June 27, 1891; No. 2; Exhibit

Henry M. Robert to Thomas Lincoln Casey, April 5, 1888

Henry M. Robert to Thomas Lincoln Casey, January 30, 1879

Henry M. Robert to Thomas Lincoln Casey, March 14, 1888

Henry M. Robert to Thomas Lincoln Casey, May 12, 1891

Henry Persons to Thomas Lincoln Casey, May 20, 1879

Henry Robert to Thomas Lincoln Casey, February 21, 1890