This primary source comes from the Collection LBJ-MCOLL: Lyndon B. Johnson Museum Collection.
Full Citation: Museum Object 2002.7.1 (A-C); Dress; 1964; Artifacts Relating to the Life and Presidency of Lyndon B. Johnson, 11/22/1963 - 7/9/1998; Collection LBJ-MCOLL: Lyndon B. Johnson Museum Collection; Lyndon Baines Johnson Library, Austin, TX. [Online Version, https://www.docsteach.org/documents/document/lady-bird-dress, April 19, 2024]