| GeoHistory Resources | 
| Hexamer General Surveys, Volume 19Perseverance MillsPlate(s): 1780 Date: 1883 Facility Name: Perseverance Mills Owner: Holt, Theresa Products Made: Yarn-Cotton Products Made: Yarn-Woolen Ward: 21 Address: Main St (N corner; Schuylkill River) Location: Philadelphia, Philadelphia County, Pennsylvania Work Title: Hexamer General Surveys, Volume 19 Creator: Ernest Hexamer Source: Image File(s): 
			HGSv19.1780 
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