 An early milestone in the settlement of Duvall proper was the relocation of the town of Cherry Valley.Around 1909, the Chicago, Milwaukee and St. Paul Railroad agreed to move Cherry Valley homes and businesses to Duvall in order to continue the construction of a railroad line along the Snoqualmie River.The newly relocated town, briefly named Cosgrove after Samuel G. Cosgrove, underwent a real estate boom; streets and sidewalks were laid and a train depot was constructed.