1. Hansberry, Lorraine
  2. Hook, Sidney
  3. Hardy, Jack
  4. Hawaii
  5. Historical Materialism
  6. Howe, Irving
  7. Humor
  8. Hayden, Tom
  9. Harburg, Edgar Y.
  10. Hungarian Americans
  11. Hughes, Langston
  12. Hughan, Jessie Wallace
  13. Hudson, Hosea
  14. Herdon Case
  15. Heywood, Angela T. and Ezra Heywood
  16. Hoopes, Darlington
  17. Hammett, Dashiell
  18. Hiss Case
  19. Hitler-Stalin Pact
  20. Horton, Myles
  21. Haywood, Harry
  22. Harrington, Oliver
  23. Hawes, Elizabeth
  24. Harrison, Hubert Henry
  25. Herbst, Josephine
  26. Heywood, Angela T.
  27. Howe, Florence
  28. Haywood, William D.
  29. Haymarket Affair
  30. Hinton, Richard Josiah
  31. Highlander Research and Education Center
  32. Harrington, Michael
  33. Hunton, W Alphaeus
  34. Hoff, Syd
  35. Health Activism, New Left
  36. Hollywood Left
  37. Hollywood Blacklist
  38. Howland, Marie
  39. Hollywood Writers Mobilization and the School for Writers
  40. Hollywood Review
  41. Hillquit, Morris
  42. Harm Reduction and Needle Exchange Movements, 1980s-1990s
  43. Hoffman, Abbie
  44. Hicks, Granville