The bulk of the collection consists of administrative and professional correspondence and memoranda, subject files, minutes and reports, and other materials relating to his responsibilities as Director of Fermilab and his activities in the larger science community. The collection spans the period from the 1960s (research and experiments), through his upsilon discovery in 1977 at Fermilab, to the present. Agency correspondence between the Department of Energy (DOE) and the Laboratory from 1978 to 1989 and the related division, department, or group subject files, laboratory experimental design reports and correspondence, annual reports, budget and funding documents, affirmative action plans, DOE reviews, Scientific Advisory Group minutes, Program Management Group minutes, High Energy Physics Advisory Panel (HEPAP) files and documents, documents related to the other DOE labs, International Committee on Future Accelerators files of correspondence and workshop proceedings, congressional hearing testimony, accelerator construction and commissioning, Energy Doubler files and reports, Energy Saver files and reports, Laboratory project files and correspondence, site development and facility utilization plans, international collaboration files, Laboratory newsletters, technical and general publications, travel and trip records for meetings, conferences, and symposia. Lederman talks, transparencies, papers, related documents, audio and video tapes, books, reprints, clippings and miscellaneous memorabilia related to Fermilab life in his administration are also part of this collection. Materials related to his 1988 Nobel Prize Prize in physics are also in the collection. Also some Division files from 1978 to 1983. Also includes some recent files of activities from the University of Chicago; the American Association for the Advancement of Science (1987-1993); Superconducting Super Collider materials including publications, correspondence, Congressional testimony, etc. (1989-1994); documents relating to the Illinois Coalition (1989-1994). Some files are still maintained in the Fermilab Director's Office and his current files are located in his Director Emeritus' Office.