Columbia subject headings:
Clark, Isaac, 1748-1822.
False certification--United States.
United States. Adjutant-General's Office.
Harvard subject headings:
Clark, Isaac, 1748-1822.
False certification--United States.
United States. Adjutant-General's Office.
Princeton subject headings:
Clark, Isaac, Colonel.
False certification--United States.
United States. Adjutant-General's Office