Barbarin to Thomas Lincoln Casey, 1873

Barnard to Thomas Lincoln Casey, May 4, 1870; ED to Colonel Martin, May 5, 1870; Martin to Thomas Lincoln Casey, May 6, 1870

Baron de Rochemont to Thomas Lincoln Casey, July 28, 1895

Baron E. T. Quinette de Rochemont to Thomas Lincoln Casey, August 4, 1893

Baron Rochemont to Thomas Lincoln Casey, May 19, 1894

Baron von Eisendecker to Thomas Lincoln Casey, February 27, 1889

Barr to Thomas Lincoln Casey, July 8, 1882

Bates & Whitman to Thomas Lincoln Casey, October 20, 1886

Bell to Thomas Lincoln Casey, May 21, 1875

Ben Perly Poore to Thomas Lincoln Casey, December 17, 1878

Benet to Thomas Lincoln Casey, August 3, 1882

Benjamin D. Green to Thomas Lincoln Casey, January 28, 1873

Benjamin Hartogensis to Thomas Lincoln Casey, January 21, 1895

Benjamin to Thomas Lincoln Casey, November 4, 1872

Bernard R. Green to Augustus St. Gaudens to Thomas Lincoln Casey, January 30, 1894, copy

Bernard R. Green to L. C. Hunt, September 13, 1886

Bernard R. Green to Thomas Lincoln Casey, August 11, 1894

Bernard R. Green to Thomas Lincoln Casey, August 14, 1894

Bernard R. Green to Thomas Lincoln Casey, August 15, 1894; telegram

Bernard R. Green to Thomas Lincoln Casey, August 16, 1894

Bernard R. Green to Thomas Lincoln Casey, August 18, 1894

Bernard R. Green to Thomas Lincoln Casey, August 19, 1881

Bernard R. Green to Thomas Lincoln Casey, August 2, 1894

Bernard R. Green to Thomas Lincoln Casey, August 21, 1894

Bernard R. Green to Thomas Lincoln Casey, August 22, 1894

Bernard R. Green to Thomas Lincoln Casey, August 24, 1893

Bernard R. Green to Thomas Lincoln Casey, August 29, 1881

Bernard R. Green to Thomas Lincoln Casey, August 29, 1894

Bernard R. Green to Thomas Lincoln Casey, August 3, 1881

Bernard R. Green to Thomas Lincoln Casey, August 30, 1894

Bernard R. Green to Thomas Lincoln Casey, August 31, 1895

Bernard R. Green to Thomas Lincoln Casey, August 4, 1894

Bernard R. Green to Thomas Lincoln Casey, August 5, 1893

Bernard R. Green to Thomas Lincoln Casey, August 6, 1894

Amasa M. Eaton to Thomas Lincoln Casey, July 10, 1894

Ambrose E. Burnside to Thomas Lincoln Casey, May 20, 1880

Amelia J. Rowland to Thomas Lincoln Casey, April 7, 1880

Amelia J. Rowland to Thomas Lincoln Casey, June 24, 1880

Amelia J. Rowland to Thomas Lincoln Casey, March 2, 1881

Amelia J. Rowland to Thomas Lincoln Casey, March 3, 1880

Amelia Waite to Thomas Lincoln Casey, May 10, 1889

American Geographical Society to Thomas Lincoln Casey, December 23, 1886

American Home Missionary Society to Thomas Lincoln Casey, June 17, 1858

American Society of Civil Engineers to Thomas Lincoln Casey, March 15, 1881, invitation

American Society of Civil Engineers, March 30, 1882, circulars

American Society of Engineers to Thomas Lincoln Casey, December 1, 1882, bill

Amos Perry to Thomas Lincoln Casey, October 24, 1882

Amos Stickley to Thomas Lincoln Casey, October 12, 1868

Amos Stickney to Thomas Lincoln Casey, April 10, 1889

Amos Stickney to Thomas Lincoln Casey, March 15, 1889