Aaron Mattson (1745-1837) was an older brother to our ancestor, Levi Mattson I (1749-1835). Both were sons of our first documented ancestor, MORRIS MATTSON (Abt. 1714-1776). The three pages, covering the period (1745-1780) were found in the Bureau County Historical Society Library in Princeton, Illinois. Thanks to Ronald Stetzel and Peter H. Mattson for making the diary available to us.

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