| International Longshoremen's & Warehousemen's Union Records |
| International Institute of Metropolitan Detroit: Old World Market Records |
| International Institute of Metropolitan Detroit: Florence Cassidy Records |
| Wayne State University Institute of Labor and Industrial Relations Area Manpower Institute for Development of Staff Records |
| Marie and David Ingar Papers |
| Illinois Labor History Society Records |
| Andres J. Ignasiak Papers |
| Nicholas Hyshka Papers |
| Charles K. Hyde Papers |
| Curt Hyans Papers |
| William Humphreys Papers |
| Arthur Hughes Papers |
| Susan Holleran Papers |
| S. L. Hoffman Papers |
| John S. Hirchak Papers |
| Joe Hill Papers |
| Charles A. Hill Papers |
| Mary J. Herrick Papers |
| Frank Henson Papers |
| Aaron Henry Papers |
| Wayne State University Health and Physical Education Division Records |
| Ronald W. Haughton Papers |
| Henry Hamilton Papers |
| Covington Hall Papers |
| Robert Halbeisen Papers |
| Carl Haessler Papers |
| Phyllis Groves Papers |
| Grosse Pointe Civil Rights Organizations Records |
| Thomas Emil Groehn Papers |
| Goddard Graves Papers |
