Browse Items (1 total) Tags: John Green Brokerage Co. Browse All Browse by Tag Search Items Sort by: Title Creator Date Added Photo of the Sangamo Building located at 326-328 N. Water St., Decatur, IL. Photograph of the Sangamo Building, 326-328 N. Water St. This building was occupied by Mueller, Platt, & Wheeland Co. Wholesale Grocers until 1917 when Blakney & Plums moved to that location. In 1954 this building was occupied by the John Green… Tags: 1917, 326-328 N. Water St., Blakney & Plums, Buildings, John Green Brokerage Co., Mueller Platt & Wheeland Co., Photo File: Buildings, Sangamo Building, Wholesale Grocers