Alice W. Babcock to Thomas Lincoln Casey, December 3, 1883

Alice W. Babcock to Thomas Lincoln Casey, February 28, 1883

Alice W. Babcock to Thomas Lincoln Casey, February 29, 1884

Alice W. Babcock to Thomas Lincoln Casey, January 30, 1883

Alice W. Babcock to Thomas Lincoln Casey, January 30, 1884

Alice W. Babcock to Thomas Lincoln Casey, June 2, 1884

Alice W. Babcock to Thomas Lincoln Casey, June 29, 1885

Alice W. Babcock to Thomas Lincoln Casey, June 7, 1883

Alice W. Babcock to Thomas Lincoln Casey, March 2, 1885

Alice W. Babcock to Thomas Lincoln Casey, March 31, 1884

Alice W. Babcock to Thomas Lincoln Casey, May 1, 1884

Alice W. Babcock to Thomas Lincoln Casey, May 30, 1885

Alice W. Babcock to Thomas Lincoln Casey, November 1, 1883

Alice W. Babcock to Thomas Lincoln Casey, October 31, 1884

Alice W. Babcock to Thomas Lincoln Casey, October 31, 1885

Alice W. Babcock to Thomas Lincoln Casey, October 8, 1883

Alice W. Babcock to Thomas Lincoln Casey, September 19, 1885

Alice W.Babock to Thomas Lincoln Casey, December 11, 1885

Alida Almy to Thomas Lincoln Casey, November 15, 1884

Alida G. Almy to Thomas Lincoln Casey, July 12, 1883

Alida G. Almy to Thomas Lincoln Casey, July 4, 1883

All Souls Church to Thomas Lincoln Casey, September 15, 1879

All Souls Church to Thomas Lincoln Casey, September 1879

All Souls Church to Thomas Lincoln Casey, September 8, 1879

All Soul's Church to Thomas Lincoln Casey, November 20, 1879

Alonzo Houck to Thomas Lincoln Casey, April 28, 1891

Alonzo Houck to Thomas Lincoln Casey, July 24, 1888

Alvey A. Adee to Thomas Lincoln Casey, February 3, 1885

American Architect and Building News editors to Thomas Lincoln Casey, August 4, 1879

American Architect and Building News editors to Thomas Lincoln Casey, July 28, 1879

American Shipping and Industrial League to Thomas Lincoln Casey, January 1, 1887

American Society of Civil Engineers ballot, undated

Amos Perry to Thomas Lincoln Casey, October 10, 1892

Amos Perry to Thomas Lincoln Casey, October 5, 1883

A. Hyde to Thomas Lincoln Casey, August 6, 1888

A. J. W. Hobson to Thomas Lincoln Casey, January 30, 1878

A. Macknight to Thomas Lincoln Casey, July 18, 1869

A. Matthews to Thomas Lincoln Casey, April 4, 1891

A. Maurice Low to Thomas Lincoln Casey, August 28, 1891

A. Maurice Low to Thomas Lincoln Casey, August 7, 1889

A. Maurice Low, Boston Globe to Thomas Lincoln Casey, May 20, 1891

A. Raymonds to Thomas Lincoln Casey, February 4, 1885

A. S. Pratt to Thomas Lincoln Casey, March 5, 1883

A. S. Pratt to Thomas Lincoln Casey, November 16, 1888

A. S. Pratt to Thomas Lincoln Casey, October 31, 1885

A. S. Williams to General A. A. Humphreys, April 19, 1878

A. Saunders to Thomas Lincoln Casey, January 29, 1879

A. T. James to Thomas Lincoln Casey, April 11, 1885

A. W. Seely to Thomas Lincoln Casey, March 6, 1885

A. W. Sherman to Thomas Lincoln Casey, October 31, 1892