Please Note: This list is an ongoing compilation and is as yet only partial.

 William Short: 1784-1789
Meriwether Lewis: April 1801- 1803
Lewis Harvie: 6 June 1803 - March 1804[1]
William A. Burwell: March - Fall 1804; Spring 1805; Summer 1806[2]
Isaac A. Coles: Winter 1804-1805; Winter 1805-1806; October 1806-March 1809[3]

Footnotes

• 1. MB, 1101-1102. See also Malone, Jefferson 4:368, 370.
• 2. MB, 1132.
• 3. MB, 2:1147.