John F. Kennedy: Remarks at the 75th Anniversary Banquet of the International Association of Machinists, 5. Mai 1963 In: Public Papers of the President, 1963, S.366
google.de
books.google.de
Charles Curry Aiken, Joseph Nathan Kane: The American Counties: Origins of County Names, Dates of Creation, Area, and Population Data, 1950–2010. 6. Auflage. Scarecrow Press, Lanham 2013, ISBN 978-0-8108-8762-6, S. 199.