Letters written to Pratt

Letters written by Pratt, 1919-1969

Articles

Notes on History of Radio (two folders)

Notes on Pan-American Wireless Telegraph and Telephone Company; Federal Telegraph Company Contracts.

Record Cards, National Bureau of Standards, 1927-1928

Personalia

Photographs

Radio History Materials

Advertisements for Equipment

Articles (two folders)

Bay Counties Wireless Telegraph Association

Centennial of the Telegraph

Cyril F. Elwell Autobiographies

Mackay Radio and Telegraph Company

Marconi's Wireless Telegraph Company Limited

Miscellaneous

Patents

Photographs

Reports of Companies

Telegraph Blanks

Albertson, Fred Woodward, 1908-

Letter, June 25, 1969.

Appleton, Sir Edward Victor, 1892-1965

No incoming letters; enclosure to letter, Sept. 20, 1955, in Kenneth M. Swezey correspondence folder is a copy of a letter from him to Nikola Tesla.

Armstrong, Edwin Howard, 1890-

10 letters, [1918] and 1953.

Included also, copies of three articles by him, "FM-TV Controversies Continue," July, 1948; "More About the Daylight Wave," September, 1948; and "Wrong Roads and Missed Chances--Some Ancient Radio History," March, 1951.

Copies of letters, Aug. 31, 1953, Dec. 16, 1953 and Jan. 4, 1954, to him from Espenschied in Lloyd Espenschied correspondence folder.

Enclosure to letter, Sept. 20, 1955, in Kenneth M. Swezey correspondence folder is a copy of a letter from him.

Astin, Allen Varley, 1904-

No incoming letters; copy of a letter, Feb. 18, 1954, to him from Espenschied in Lloyd Espenschied correspondence folder.

Bailey, George William, 1887-

11 letters, 1953. To Pratt and others.

Copy of a letter, Sept. 10, 1959, to him from Harry P. Cooper and copy of a letter, Aug. 31, 1959, to him from Glenn A. Fowler in A-G Miscellaneous correspondence folder.

Copies of letters, Mar. 9, 1953 and May 4, 1953, to him from Carmichael in Leonard Carmichael correspondence folder.

Letters, Jan. 7, 1952 and Mar. 17, 1952, to him from Elwell in Cyril F. Elwell correspondence folder.

Copy of a letter, Feb. 15, 1954, to him from Espenschied in Lloyd Espenschied correspondence fold

Enclosures to note, Nov. 7, 1969, in Institute of Electrical and Electronics Engineers, Inc. correspondence folder are a letter to him and a copy of one from him.

Copy of a letter, June 11, 1953, to him from the director in Smithsonian Institution correspondence folder.

Beverage, Harold Henry, 1893-

Letter, June 21, 1965.

Bown, Ralph, 1891-1971

3 letters, 1954-56.

Caldwell, Orestes Hampton, 1888-

Letter, January 9, 1953.

Carmichael, Leonard, 1898-

2 letters, 1953, addressed to George W. Bailey, re Smithsonian Institution.

Copies of letters, Mar. 2, 1953, Mar. 2, 1953, Mar. 11, 1953, Apr. 21, 1953, May 11, 1953 and June 8, 1953, to him from Bailey in George W. Bailey correspondence folder.

Clement, Lewis Mason

Letter, November 16, 1964.

Notes, undated

Information on Bay Area wireless and early radio

de Forest, Lee, 1873-1961

Letter, November 21, 1945. To Alfred N. Goldsmith

Enclosure to letter, Sept. 9, 1953, in Lloyd Espenschied correspondence folder is a copy of a letter from Espenschied to him.

Copy of a letter, Jan. 10, 1946, to him from Goldsmith in Alfred N. Goldsmith correspondence folder.

Enclosures to note, May 4, 1963, in Emil J. Simon correspondence folder are copies of letters from him, one to Lloyd Espenschied and the other to Simon.

Enclosure to letter, May 23, 1955, in Kenneth M. Swezey correspondence folder is a copy of a letter from him to Nikola Tesla.

Dibner, Bern, 1897-

No incoming letters; copies of letters, Feb. 24, 1965, Feb. 28, 1965 and Mar. 27, 1965, to him from Espenschied in Lloyd Espenschied correspondence folder.

Dunn, Gano, 1870-

No incoming letters; enclosure to letter, May 23, 1955, in Kenneth M. Swezey correspondence folder is a copy of a letter from him to Nikola Tesla.

Eastham, Melville, 1885-1964

2 letters, 1953 and 1960.

Enclosure to letter, June 5, 1953, in Institute of Radio Engineers correspondence folder is a copy of a letter to him.

Elwell, Cyril Frank,

5 letters, 1952-54 re wireless equipment.

Enclosures to letter, May 5, 1965, in Lloyd Espenschied correspondence folder are a copy of a letter to him from Espenschied and one from him to Espenschied.

Espenschied, Lloyd, 1889-

101 letters, 1940-69.

18 memos, 1963-66.

To Pratt and others, some re Emil J. Simon's papers.

Included also, papers by him, "The Telefunken Co. of America, 1909-1910," 1950; "Critique of the Hammond-Purington Paper Entitled 'A History of Some Foundations of Modern Radio-Electronic Technology'," 1957; and "Emil J. Simon, 1888-1963," 1963.

Enclosure to letter, Oct. 14, 1953, in Edwin H. Armstrong correspondence folder is a copy of a letter to him from Armstrong.

Copy of a letter, May 2, 1969, to him from M. D. Hooven in H Miscellaneous correspondence folder.

Enclosure to letter, June 5, 1953, in Institute of Radio Engineers correspondence folder is a copy of a letter to him.

Copy of a letter, May 15, 1969, to him from McCue in John J.G. McCue correspondence folder.

Enclosure to note, May 4, 1963, in Emil J. Simon correspondence folder is a copy of a letter to him from Lee de Forest.

Enclosures to letter, May 30, 1963, in Emil J. Simon correspondence folder are copies of two letters to him from Benjamin F. Miessner.

Federal Telegraph Company

26 letters, 1915-25.

7 telegrams, 1924.

To Pratt and others, mostly from Ellery W. Stone.

Included also, 7 miscellaneous reports, ca. 1923-24.

Copy of a letter, July 2, 1913, to the officers and directors from Tuel in A. Y. Tuel correspondence folder.

See also Tuel, A. Y.

Fink, Donald Glen, 1911-

Letter, November 18, 1964

Copy of a letter, Oct. 25, 1964, to him from Espenschied in Lloyd Espenschied correspondence folder.

Goldsmith, Alfred Norton, 1887-

4 letters, 1946-62. To Pratt and others, mostly re his position as Editor, Institute of Radio Engineers.

Copy of a letter, Nov. 21, 1945, to him from de Forest in Lee de Forest correspondence folder.

Haggerty, Patrick Eugene, 1914-

No incoming letters; enclosure to note, Nov. 7, 1969 in Institute of Electrical and Electronics Engineers, Inc. correspondence folder is a copy of a letter from him to George W. Bailey.

Hammond, John Hays, 1888-

No incoming letters; enclosure to letter, May 31, 1964, in Pratt's outgoing letters is a copy of a letter to him.

Enclosures to letter, Apr. 24, 1953, in Lloyd Espenschied correspondence folder are copies of two letters from Espenschied to him and one from him to Espenschied and enclosures to letter, May 20, 1953, are copies of letters from him to Beach Thompson and Major F. R. Burnham.

One enclosure to letter, Sept. 20, 1955, in Kenneth M. Swezey correspondence folder is a copy of a letter from him to Swezey.

Hewlett, William Redington, 1913-

3 letters, 1954.

Copies of letters, Oct. 9, 1954, Nov. 8, 1954, and Dec. 31 1954, to him from Frederick K. Vreeland in Q-Z Miscellaneous folder.

Hibshman, Nelson Sherk, 1902-

2 letters, 1963 and 1968.

Copy of a letter, Apr. 19, 1963, to him from Espenschied in Lloyd Espenschied correspondence folder.

Institute of Electrical and Electronics Engineers, Inc.

12 letters, 1963-69. To Pratt and others.

Copies of letters, Sept. 24, 1963, Nov. 21, 1963, Dec. 7, 1963, Dec. 8, 1963, Oct. 25, 1964, Aug 10, 1966 and May 21, 1969, to the Institute and copy of a letter, May 27, 1964, to the Institute and others from Espenschied in Lloyd Espenschied correspondence folder.

Enclosure to letter, Apr. 10, 1967, in Lloyd Espenschied correspondence folder is a copy of a letter to the Institute from Espenschied.

Institute of Radio Engineers

8 letters, 1953-62. To Pratt and others.

See also Goldsmith, Alfred N.

Jackson, Joseph Gray, 1904-

Letter, April 16, 1965.

McCue, John Joseph Gerald, 1913-

Letter, May 15, 1969.

Copy of a letter, May 21, 1969, to him from Espenschied in Lloyd Espenschied correspondence folder.

Copy of a letter, Aug. 6, 1969, to him from Staff Secretary in Institute of Electrical and Electronics Engineers, Inc. correspondence folder.

Mackay, Clarence Hungerford, 1874-1938

No incoming letters; enclosure to note, May 10, 1963, in Emil J. Simon correspondence folder is a copy of a letter from him to Simon.

Copies of letters, Aug. 18, 1924, and Sept. 16, 1924, to him from Spreckels in Rudolph Spreckels correspondence folder.

Enclosure to letter, Sept. 8, 1924, in Federal Telegraph Company correspondence folder is a copy of a letter from him to Rudolph Spreckels and enclosure to letter, Nov. 24, 1924, is also a copy of a letter from him to Spreckels.

Marriott, Robert Henry, 1879-

Letter, December 15, 1950.

Enclosure to letter, Oct. 8, 1965, in Lloyd Espenschied correspondence folder is a copy of a letter from him to Espenschied and enclosure to note, Oct. 9, 1965, is a copy of a letter from him to Espenschied.

Marton, Ladislaus Laszlo, 1901-

No incoming letters; enclosures to letter, May 6, 1969, from W. R. Crone in Institute of Electrical and Electronics Engineers, Inc. correspondence folder are a copy of a letter from him and one to him.

Miessner, Benjamin Franklin, 1890-

6 letters, 1963-64.

Enclosure to letter, March 23, 1963, in Lloyd Espenschied correspondence folder is a copy of a letter to him from Espenschied and enclosure to letter, Aug. 29, 1963, is a copy of a letter to him from Espenschied.

Copies of letters, Feb. 14, 1965, and Apr. 14, 1965, to him from Espenschied in Lloyd Espenschied correspondence folder.

Copy of a letter, Feb. 6, 1962, to him from the editor in Institute of Radio Engineers correspondence folder.

Enclosures to letter, May 30, 1963, in Emil J. Simon correspondence folder are copies of two letters from him to Lloyd Espenschied.

Millikan, Robert Andrews, 1868-1953

No incoming letters; enclosure to letter, Sept. 20, 1955, in Kenneth M. Swezey correspondence folder is a copy of a letter from him to Nikola Tesla.

Pickard, Greenleaf Whittier, 1877-

No incoming letters; enclosure to letter, May 23, 1955, in Kenneth M. Swezey correspondence folder is a copy of a letter from him to Nikola Tesla.

Roosevelt, Franklin Delano, 1882-1945

2 letters, 1915. Addressed to the U.S. Navy Department.

Ryder, John Douglas, 1907-

Letter, May 9, 1958.

Memo, undated

Sarnoff, David, 1891-

No incoming letters; enclosures to letter, Oct. 8, 1965, in Lloyd Espenschied correspondence folder are a copy of a letter from him to Espenschied and one to him from Espenschied.

Simon, Emil Jacob, 1888-1963

5 letters, 1963.

Included also, materials re wireless history: Avionics, Navy and Marconi.

Enclosure to letter, Mar. 12, 1963, in Pratt's outgoing letters is a copy of a letter from him to Pratt.

See also Espenschied, Lloyd.

Smithsonian Institution

34 letters, 1953-68.

Copy of a letter, Nov. 16, 1960, to the Smithsonian from W. W. Brown in A-G Miscellaneous correspondence folder.

Copy of a letter, Feb. 10, 1961, to the Smithsonian from D. S. Rau in Q-Z Miscellaneous correspondence folder

See also Carmichael, Leonard

Southworth, George Clark, 1890-

No incoming letters; copy of a letter, Feb. 21, 1965, to him from Espenschied in Lloyd Espenschied correspondence folder.

Spreckels, Rudolph, 1872-1958

2 letters, 1924. Addressed to Clarence Mackay.

Enclosure to letter, Sept. 8, 1924, in Federal Telegraph Company correspondence folder is a copy of a letter to him from Clarence Mackay and enclosure to letter, Nov. 24, 1924, is also a copy of a letter to him from Mackay.

Stratton, Julius Adams, 1901-

No incoming letters; copies of letters, Mar. 2, 1953, to him from Bailey in George W. Bailey correspondence folder.

Susskind, Charles, 1921-

Letter, undated

Swezey, Kenneth M.

7 letters, 1955-60.

Information about Nikola Tesla. Included also, articles by him, "Nikola Tesla: Pathfinder of the Electrical Age," 1956 and "Nikola Tesla," 1958.

Terman, Frederick Emmons, 1900-

5 letters, 1963-64.

Copy of a letter, Apr. 16, 1964, to him from Espenschied in Lloyd Espenschied correspondence folder.

Thompson, Beach, 1865-

No incoming letters; enclosure to letter, May 20, 1953, in Lloyd Espenschied correspondence folder is a copy of a letter to him from John H. Hammond.

Tuel, A. Y.

89 letters, 1913-19.

3 telegrams, 1919

Information on post World War I West Coast radio stations, including activities of the U.S. Navy station on Goat Island and Federal Telegraph Company.

Van Dyck, Arthur Floyd

2 letters, 1965 and 1966.

Included also, article by him, "Solar Energy," December 1955.

Watson, Paul G.

6 letters, 1965.

Information re the Arlington Naval Radio Station, ca. 1913

Weber, Ernst, 1901-

No incoming letters; copies of letters, Mar. 6, 1963 and Mar 12, 1963, addressed to him and others in Pratt's outgoing letters.

Copy of a letter, Mar. 9, 1963, to him from Espenschied in Lloyd Espenschied correspondence folder.

Enclosure to letter, Mar. 23, 1963, in Lloyd Espenschied correspondence folder is a copy of a letter to him from Espenschied.

White, William Comings, 1890-

Letter, October 25, 1956.

Whitehead, John Boswell, 1872-1954

No incoming letters; one enclosure to letter, May 23, 1955, in Kenneth M. Swezey correspondence folder is a copy of a letter from him to Nikola Tesla.