Johnson, LyndonOffice held: As PresidentAddressee: "Eugene G. Mattison Jr., Administrative Director, Plans for Progress"Writer's location: "The White House Washington, D.C.", December 16, 1966

Johnson, LyndonOffice held: As PresidentAddressee: "Eugene G. Mattison Jr., Administrative Director, Plans for Progress"Writer's location: "The White House Washington, D.C.", December 16, 1966, Box: 5, Folder: 14. Gail and Stephen Rudin American presidential collection, 6844. Division of Rare and Manuscript Collections. https://aspace3-test.library.cornell.edu/repositories/2/archival_objects/552483 Accessed April 20, 2025.