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1
Creator:
Porter, Andrew 1743-1813
Subjects and Genres: ';
“...Astronomy--18th century. Local sources...”
Record Source:
Archival Materials
Manuscript
2
Creator:
Rittenhouse, David 1732-1796
Subjects and Genres: ';
“...Astronomy--18th century. Local sources...”
Record Source:
Archival Materials
Manuscript
3
Record Source:
Archival Materials
Manuscript