• Map: The Shrinking of Hamtramck 1825 – 1922

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  • Map: Comparative Health Rating for Sections of Detroit 1920-1921

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  • Map: Detroit Electrical Transmission System 1924

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  • Map: Detroit Infant Mortality Rate 1922

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  • Map: Detroit Annexation and Wayne County 1922

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  • Map: Detroit Birth Rate 1922

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