| GeoHistory Resources | 
| Hexamer General Surveys, Volume 15Union MillPlate(s): 1414 Date: 1879 Facility Name: Union Mill Owner: Hall, William & Co.  Products Made: Shoddy Address: Union Ave, West Chester and Philadelphia Railroad, , and Baltimore Rd (NEC corner) Location: Upper Darby, Delaware County, Pennsylvania Work Title: Hexamer General Surveys, Volume 15 Creator: Ernest Hexamer Source: Image File(s): 
			HGSv15.1414 
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