Encyclopedias, Almanacs, Transcripts, and Maps
- Hollywood and the Film Industry
- Home Networking
- Home Owners Loan Corporation (HOLC)
- Hoover's Online
- Hoover, Lou Henry
- Hopkins, Harry
- Hopkins, Harry
- House Un-American Activities Committee (HUAC)
- Houston, Charles
- Howard University
- Hunger Marches
- IBM Corp
- ICANN (Internet Corporation for Assigned Names and Numbers)
- Ickes, Harold
- Ickes, Harold
- Incubators, E-Commerce
- Independent Sales Organization (ISO)
- Indian New Deal
- Indian Reorganization Act of 1934
- Industry, Effects of the Great Depression on