Andrew Jackson's Remarkable Luck (sources)
- "Attempt to Assassinate the President," article in Niles' Weekly Register for February 7, 1835, Baltimore, Maryland, USA. Pgs. 390-392. Online: https://books.google.com/books?id=AM4-AQAAMAAJ&pg=PA391&dq=%22near+one+of+the+columns.+The+president,+with+the+secretary+of+the+treasury%22&hl=en&sa=X&ved=0ahUKEwiO-Mqj7drZAhXLjVQKHZaaDDEQ6AEIJjAA#v=onepage&q=%22near%20one%20of%20the%20columns.%20The%20president%2C%20with%20the%20secretary%20of%20the%20treasury%22&f=false
- "Recollections of the Times of General Andrew Jackson: No. 2 - Richard Lawrence, the Assassin," article in Holden's Dollar Magazine, Vol. II, No. III, September 1848, New York, USA. Pg. 542-544. Online: https://books.google.com/books?id=SeM2AQAAMAAJ&pg=PA544&dq=%22andrew+jackson%22+%22richard+lawrence%22&hl=en&sa=X&ved=0ahUKEwil7baV99jZAhVHx1QKHY-ECvwQ6AEIVDAI#v=onepage&q=%22andrew%20jackson%22%20%22richard%20lawrence%22&f=false
- "Coast & Geodetic survey Ships - Thomas R. Gedney," page in the NOAA History website, viewed 3-8-2018. online: http://www.history.noaa.gov/ships/gedney.html
- "Revolver," page in the Wikipedia website, viewed 3-7-2018. Online: https://en.wikipedia.org/wiki/Revolver
- "Caplock mechanism," page in the Wikipedia website, viewed 3-7-2018. Online: https://en.wikipedia.org/wiki/Caplock_mechanism
- Thirty Years' View: or, A History of the Working of the American Government for Thirty Years, From 1820 to 1850, Vol. I, by Thomas Hart Benton, 1854 USA. Pg. 521. Online: https://books.google.com/books?id=3qIU6HhBXmwC&pg=PA521&dq=%22and+found+to+be+well+loaded;+and+fired+afterwards+without+fail,+carrying+their+bullets+true,+and+driving+them+through+inch+boards+at+thirty+feet.%22&hl=en&sa=X&ved=0ahUKEwil1rDc9trZAhUO82MKHRVKAwYQ6AEINzAD#v=onepage&q=%22and%20found%20to%20be%20well%20loaded%3B%20and%20fired%20afterwards%20without%20fail%2C%20carrying%20their%20bullets%20true%2C%20and%20driving%20them%20through%20inch%20boards%20at%20thirty%20feet.%22&f=false
- "This Day in History - January 30: 1835 - Andrew Jackson narrowly escapes assassination," page in the History Channel website, viewed 2-2-2018. Online: https://www.history.com/this-day-in-history/andrew-jackson-narrowly-escapes-assassination
- "Derringer," page in the Wikipedia website, viewed 3-8-2018. Online: https://en.wikipedia.org/wiki/Derringer