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- Wilmington, Delaware:Portrait of an Industrial City, 1830-1910: Portrait of an Industrial City, 1830-1910 by Carol E. Hoffecker, 1974
- Muncie/Delaware County, Indiana: City Map (Rand McNally) by Rand McNally, 1999-06
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- First settlement on the Delaware: A history of Gloucester City, New Jersey by Louisa W Llewellyn, 1976
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