This free course was written by Joshua Thomas. It was first published in August 2020.
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Figure 1: Library of Congress, Prints & Photographs Division; cph.3b47734
Figure 2: John C. Watkins V
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Figure 5: GoToVan; https://creativecommons.org/licenses/by/2.0/deed.en
Video 6: The National Archive/Films;http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/
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