- 18** :
Letter from M. Parker, [18--]
- 18** :
Letter from William Richardson, July 4, [18--]
- 1816 :
Newspaper clipping: Charges for Medicines and Medical Services, The Virginia Herald, September 11, 1816
- 1822 :
Letter from George Banks, January 3, 1822
- 1826 :
Letter from Richard Hill, October 8, 1826