The Rosa Parks papers are now online at the Library of Congress… https://www.loc.gov/collections/rosa-parks-papers/about-this-collection
About the Collection: The papers of Rosa Parks (1913-2005) span the years 1866-2006, with the bulk of the material dating from 1955 to 2000. The collection contains approximately 7,500 items in the Manuscript Division, as well as 2,500 photographs in the Prints and Photographs Division. The collection documents many aspects of Parks’s private life and public activism on behalf of civil rights for African Americans. The vast majority of items in the Parks Collection have been digitized in their entirety and may be viewed in this online collection. Other material is available to researchers through the Manuscript and Prints and Photographs reading rooms. – LOC website