Martin Kelly, M.A., is a history teacher and also curriculum developer. That is the author of "The everything American Presidents Book" and "Colonial Life: Government."
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" data-caption="Gutzon Borglum's model of Mt. Rushmore memorial, whereby you see the original plans" data-expand="300" id="mntl-sc-block-image_1-0-6" data-tracking-container="true"/>
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