James Gallatin was secretary to his father, American diplomat Albert Gallatin, and accompanied his father on his missions in Europe between 1813 and 1827.
21 rue de l'Universite
The house is really very fine entre cours et jardin. Furniture old but very good. We have to supply our own plate and linen. We have to make some alterations, so mamma and Frances have gone to the Lussacs at Versailles. I have my own valet, Lucien, aged twenty five -- a very important person he thinks himself, valet to a Secretary of the Embassy. He will call me "Excellence."
From The Diary of James Gallatin in Americans in Paris: A Literary Anthology, Adam Gopnik,editor (New York: The Library of America, 2004), p.33.