1Thomas Jefferson to Mark Langdon Hill, 5 April 1820 (Jefferson Papers)
Governor Langdon..., to it’s republican tack. this made me the mark for every shaft which calumny &
2From James Madison to Mark Langdon Hill, [post–17] April 1820 (Madison Papers)
...from Mr. Jefferson, one to the late Govr. Langdon, the other to yrself, and a copy of...
3From James Madison to Mark Langdon Hill, 18 April 1822 (Madison Papers)
J. Madison, with his respects to Mr. Hill, returns his thanks for the copy of the Report...