Otto K. Dorn was born in 1875 in Cleveland, Ohio. He became interested in the ideas of Henry George after taking an economics course taught by Louis F. Post, then editor of the Cleveland Recorder, in 1896. In 1920, Dorn became head of a chain of retail stores, which brought him to New York City. While in NYC, he became active in the Manhattan Single Tax Club and later, the Henry George of Social Science. In 1930, Dorn was appointed Director of the HGSSS and in 1937, he was elected to the Board of the Robert Schalkenbach Foundation. Dorn also served as president of the American Journal of Economics and Sociology, edited by Will Lissner. Dorn died in 1958 at the age of 83.

Correspondence between Otto Dorn and I. L. Pulver, July 1935
Otto Dorn to Betty Connors, May 11, 1937

1938

Correspondence between Otto Dorn and Henry Ware Allen, February-March 1938
Otto Dorn to Lawson Purdy, March 8, 1938
Paul A. Schneider to Otto Dorn, March 10, 1938
Otto Dorn to Paul A. Schneider, March 11, 1938
Otto Dorn to George Lloyd, December 12, 1938

1939

Otto Dorn to Elwood Calahan, March 7, 1939
Emily Skeel to Otto Dorn, March 9, 1939
Emily E. Skeel to Otto Dorn, March 10, 1939
Emily E. Skeel to Otto Dorn, April 16, 1939
Emily E. Skeel to Otto Dorn, April 22, 1939
Otto Dorn to John Drums, July 24, 1939
Stanford Bissell to Otto Dorn, August 3, 1939
Otto Dorn to Stanford Bissell, August 7, 1939
Otto Dorn to William C. Schram, August 7, 1939
Stanford Bissell to Otto Dorn, August 9, 1939
William C. Schram to Otto Dorn, August 12, 1939
David Gibson to Otto Dorn, November 1, 1939
Otto Dorn to David Gibson, November 6, 1939

1940

Otto Dorn to Erwin Kauffman, February 6, 1940
Maurice Fels to Otto Dorn, February 16, 1940
Charles Joseph Smith to Otto Dorn, April 25, 1940
Otto Dorn to Charles Joseph Smith, April 30, 1940
Helen D. Denligh to Otto Dorn, August 27, 1940
Nina C. Geiger to Otto Dorn, August 27, 1940
Otto Dorn to Helen Donbigh, September 10, 1940
Otto Dorn to Nina C. Geiger, September 10, 1940
Otto Dorn to Mrs. Roswell Skeel, Jr., September 10, 1940
John S. MacLean to Otto Dorn, November 27, 1940
Otto Dorn to John S. MacLean, December 16, 1940

1941

George L. Rusby to Otto Dorn, January 27, 1941
Ernest Greenwood to Otto Dorn, March 4, 1941
S.A. Schneidman to Otto Dorn, March 13, 1941
Charles Joseph Smith to Otto Dorn, April 12, 1941
Otto Dorn to Charles Joseph Smith, April 14, 1941
E.W. Crabill to Otto Dorn, January 24, 1941
Henry Ware Allen to Otto Dorn, February 27, 1941
Charles Joseph Smith to Otto Dorn, March 25, 1941
Otto Dorn to Miss McCarthy, March 26, 1941
Otto Dorn to Virginia McKenna, June 9, 1941
Otto Dorn to Daniel Goodman, November 5, 1941

1942

Paul Peach to Otto Dorn, February 17, 1942
William E. Clement to Otto Dorn, February 23, 1942
Correspondence between John Monroe and Otto Dorn, March 1942
Edward S. Mooney to Otto Dorn, March 24, 1942
Arthur C. Brown to Otto Dorn, November 23, 1942

1943

Henry Ware Allen to Otto Dorn, February 3, 1943
Otto Dorn to Henry Allen Ware, April 5, 1943
Otto Dorn to J.R. Cominsky, May 13, 1943
Henry Foley to Otto Dorn, September 4, 1943
Otto Dorn to Captain William H. Quasha, September 8, 1943
Edgar M. Queeny to Otto Dorn, October 13, 1943
J.S. MacLean to Otto Dorn, November 23, 1943

1944

Vic to Mr. and Mrs. Dorn, January 5, 1944
John Storeck to Otto Dorn, January 27, 1944
Raymond P. Mansur to Otto Dorn, February 4, 1944
Otto Dorn to Wainright Evans, February 10, 1944
Otto Dorn to Roger Burnham, February 17, 1944
Otto Dorn to Peter A Stankeuich, February 24, 1944
Henry Ware Allen to Otto Dorn, February 28, 1944
Otto Dorn to M.D. Coate, February 28, 1944
Otto Dorn to Vincent Riggeo, March 10, 1944
Otto Dorn to Henry Ware Allen, March 28, 1944
Otto Dorn to Argyll R. Parsons, May 8, 1944
George Cartwright to Otto Dorn, July 25, 1944
Otto Dorn to Grace W. Pierce, July 27, 1944
Otto Dorn to Mr. and Mrs. L.P. Pinkim, August 15, 1944
Otto Dorn to Helen D. Danbigh, August 22, 1944
Ed R. Derrickson to Otto Dorn, September 11, 1944
Will Lissner to Otto Dorn, October 19, 1944
Otto Dorn to [illegible], October 20, 1944
J.S. MacLean to Friends of the Henry George School of Social Science, December 11, 1944
Otto Dorn to Marjorie O’Shaughnessay, December 19, 1944

1945

Correspondence between Otto Dorn and Henry Ware Allen, 1945-1947
Correspondence between Otto Dorn and Sgt. Herman Marks, April 1945
William H. Matchette, Jr. to Otto Dorn, May 3, 1945
Otto Dorn to Oscar Boelens, May 7, 1945
Otto Dorn to [illegible], June 2, 1945

1946

Otto Dorn to Jerome Falk, February 13, 1946
Otto Dorn to Santiago Guiterrez, May 10, 1946
Otto Dorn to George L. Rusby, June 27, 1946
Otto Dorn to John C. Evans, July 31, 1946
Verlin D. Gordon to Otto Dorn, November 14, 1946

1947

Otto Dorn to George Cartwright, January 10, 1947
Anna George de Mille to Otto Dorn, January 15, 1947
Charles Johnson Post to Otto Dorn, March 21, 1947
Otto Dorn to C.H. Kendal, March 24, 1947
Otto Dorn to Charles Johnson Post, March 24, 1947

1948-beyond

Jim Donnelly to Otto Dorn, June 25, 1948
Otto Dorn to Forbes Magazine, July 6, 1949
Otto Dorn to H.C. Maguire, November 3, 1949
Obituary in the NYT, December 28, 1958
Obituary of Otto Dorn in the Henry George News, January 1959
Otto Dorn to Quiz Kids, undated
Will Lissner to Otto Dorn, undated
“Passing of Single Tax,” Alexandria Gazette (undated)