1[From Thomas Jefferson to Cassini, 13 June 1787] (Jefferson Papers)
[ Paris 13 June 1787 . Entry in SJL under this date reads: “Cassini. le comte de à l’Observatoire royal.” Not found.]
2[From Thomas Jefferson to Champion, 13 June 1787] (Jefferson Papers)
[ Paris, 13 June 1787 . Entry in SJL reads: “Champion. le Comte de. à l’Abbaye St. Germains des prés, r. Colombier.” Not found.]
3[From Thomas Jefferson to the Abbé Gaubert, 13 June 1787] (Jefferson Papers)
[ Paris, 13 June 1787 . Entry in SJL reads: “Gaubert l’Abbé. r. de l’eveque butte St. Roche. No. 34.” Not found.]