Browsing: Diary of John Quincy Adams, Volume 1

5. Herman Le Roy, oldest surviving son of Jacob Le Roy of New York, had strong kinship and mercantile connections in the Netherlands. In the late 1780s he formed a mercantile firm with his brother-in-law, William Bayard, which became one of the largest commercial houses in New York city (Alexander Du Bin, ed., Le Roy Family and Collateral Lines . . ., Phila., 1941, p. 5–6. For a discussion of JA's relationship with the Le Roy family, see Adams Family Correspondence, 4:148.