1John F. Dumoulin to Thomas Jefferson, 12 April 1816 (Jefferson Papers)
An Essay on Naturalization & Allegiance (J. F. Dumoulin) [index entry]
2Thomas Jefferson to John F. Dumoulin, 7 May 1816 (Jefferson Papers)
An Essay on Naturalization & Allegiance (J. F. Dumoulin) [index entry]