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1. Astronomers : moulders of American history.

Creator Personal:
Orr, Ed.
Title:
Astronomers : moulders of American history.
Call Number:
P11740
Date:
1935
Description:

Typescript.

Subject Personal:
Mason, Charles, 1730-1787., Dixon, Jeremiah, 1733-1779.
Subject Geographic:
Mason-Dixon Line., Pennsylvania--Boundaries--Maryland., Maryland--Boundaries--Pennsylvania.
All:
Maryland--Boundaries--Pennsylvania., Mason, Charles, 1730-1787., Pennsylvania--Boundaries--Maryland., Mason-Dixon Line., Dixon, Jeremiah, 1733-1779.