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

Alice W. Babcock to Thomas Lincoln Casey, December 24, 1884

Alice W. Babcock to Thomas Lincoln Casey, December 27, 1883

Alice W. Babcock to Thomas Lincoln Casey, December 28, 1885

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

Amos Perry to Thomas Lincoln Casey, October 5, 1892

Amos Stickney to Thomas Lincoln Casey, July 30, 1889

Amzi Dodd to [Frederick] T. Frelinghuysen, May 19, 1884

Amzi Dodd to [Frederick] T. Frelinghuysen, May 19, 1884, copy

Andrew J. Suydam to Thomas Lincoln Casey, July 6, 1888

Andy Slattery to Mr. M. D. Kelly, October 23, 1891, copy

Anna D. Michener to Thomas Lincoln Casey, February 14, 1884

Anna Ewing Cockrell to Thomas Lincoln Casey, January 24, 1879

Anna Gould to Thomas Lincoln Casey, March 24, 1884

Anne Rhea Weir to Thomas Lincoln Casey, April 11, 1890

Anne Rhea Weir to Thomas Lincoln Casey, December 24, 1891

Anne Saunders to Thomas Lincoln Casey, April 1884