1To Thomas Jefferson from John H. Hall, 30 January 1806 (Jefferson Papers)
The grounds on which I presume to address you with the enclosed Proposal; arrising in part from...
2To James Madison from John H. Hall, 21 February 1811 (Abstract) (Madison Papers)
21 February 1811, Portland. Claims to have made an improvement in the construction of firearms...
3John Hancock Hall to Thomas Jefferson, 15 July 1818 (Jefferson Papers)
Several years since, I formed the resolution of collecting information, from time to time, as...
4To Thomas Jefferson from John H. Hall, 20 July 1823 (Jefferson Papers)
Pardon the liberty we assume in thus addressing you, in doing which we feel a peculiar delicacy...
5To James Madison from John H. Hall and Others, 10 October 1823 (Madison Papers)
Having not the honor of a personal acquaintance, you will pardon the liberty we assume in thus...
6To John Adams from John H. Hall, 25 October 1823 (Adams Papers)
Having not the honor of a personal acquaintance, you will pardon the liberty we take in thus...