Names
- Hoffman, Clare Eugene, 1875-1967.1
- Hopkins, Harry L. (Harry Lloyd), 1890-1946.1
- Hopkins, Louis Allen.1
- Hubbs, Carl L. (Carl Leavitt), 1894-1979.1
- Huber, Gotthelf Carl, 1865-1934.1
- Hudson, Richard, 1845-1915.1
- Hughes, Charles Evans, 1862-1948.1
- Hulbert, Henry Schoolcraft, 1869-1959.1
- Hull, Cordell, 1871-1955.1
- Humphrey, Hubert H. (Hubert Horatio), 1911-1978.1
- Hussey, William Joseph, 1862-1926.1
- Hutchins, Harry Crocker, 1880-1948.1
- Hutchins, Robert Maynard, 1899-1977.1
- Ickes, Harold L. (Harold LeClair), 1874-1952.1
- Iden, Thomas Medary, 1856-1933.1
- Illinois Birth Control League.1
- Immigration Restriction League.1
- Institute of International Education (New York, N.Y.)1
- International Sociological Association.1
- Jacobs, Albert Charles, 1900-1976.1