David Edwin "Eddie" Harrell, et al., Unto A Good Land: A History of the American People (Wm. B. Eerdmans, 2005, ISBN 0-8028-3718-2), p. 902.
google.co.uk
books.google.co.uk
M. Sieff, That Should Still Be Us: How Thomas Friedman's Flat World Myths Are Keeping Us Flat on Our Backs (Wiley, 2012, ISBN 978-1-118-24063-2); Google Books.