Orteig Prize (English Wikipedia)

"Lindbergh given check by Orteig" Archived September 29, 2015, at the Wayback Machine. The Gettysburg Times (Associated Press), June 17, 1927, p. 2. Retrieved: January 8, 2016.
"Lindbergh Given Check By Orteig". The Gettysburg Times. New York. Associated Press. June 17, 1927. p. 2. Archived from the original on September 29, 2015. Retrieved 2013-09-24.

sfmuseum.org

Conant, Jane Eshelman (Oct 10, 1955). "Pioneer Pacific Fliers wrote Tragic Chapter In Air History". San Francisco Call-Bulletin. Virtual Museum of the City of San Francisco. Archived from the original on September 26, 2011. Retrieved 2011-08-20.

"Lindbergh takes off from New York in effort to fly solo to Paris". United Press International. 20 May 1927. Retrieved 24 May 2020.

"Lindbergh given check by Orteig" Archived September 29, 2015, at the Wayback Machine. The Gettysburg Times (Associated Press), June 17, 1927, p. 2. Retrieved: January 8, 2016.
Conant, Jane Eshelman (Oct 10, 1955). "Pioneer Pacific Fliers wrote Tragic Chapter In Air History". San Francisco Call-Bulletin. Virtual Museum of the City of San Francisco. Archived from the original on September 26, 2011. Retrieved 2011-08-20.
Belfiore, Michael (2007). Rocketeers: how a visionary band of business leaders, engineers, and pilots is boldly privatizing space. New York: Smithsonian Books. pp. 15–17, 30. ISBN 978-0-06-114903-0. Archived from the original on 2015-05-15. Retrieved 2014-12-28.
"Clarence D. Chamberlin Recalls Historic Flight, Explains Why Lindbergh Beat Levine Across Atlantic". Archived from the original on 3 September 2011. Retrieved 19 September 2011.
"Lindbergh Given Check By Orteig". The Gettysburg Times. New York. Associated Press. June 17, 1927. p. 2. Archived from the original on September 29, 2015. Retrieved 2013-09-24.

Simmons, George (1965). Target: Arctic, Men in the Skies at the Top of the World. Philadelphia: Chilton Books. pp. 107–108. OCLC 486837.