Plymouth School District MapPlymouth School District MapSixth l. h. districtHydrographic map of Delavan and Lauderdale lakes, Walworth Co., Wisconsin / Prepared from surveys by the Wisconsin Geological and Natural History Survey, E.A. Birge, PH. D., Director ; hydrography in charge of L.S. Smith, C.E. ; field work by L.S. Smi...
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[1898-01-01,1898-12-31]