Greenberry Dorsey (ca. 1787–1869), merchant and public official, was a native of Baltimore who moved permanently to New Orleans in about 1812. He served as a director of the Bank of Louisiana and of the local branch of the Bank of the United States, a War Department pension agent, and a federal receiver of public monies. President John Tyler nominated him in 1844 as a federal customs collector, but the Senate rejected this appointment. In 1850 Dorsey owned real estate valued at $800. He died of pneumonia (Dorsey et al. v. Olive Sternenberg & Company et al., Court of Civil Appeals of Texas, 11 Apr. 1906, The Southwestern Reporter, 1st ser. [1886–1928], 94:413–4; JEP description begins Journal of the Executive Proceedings of the Senate of the United States description ends , 6:191–2, 231, 249 [3 Mar. 1843, 6 Feb., 21 Mar. 1844]; Register of all Officers and Agents, civil, military, and naval, in the Service of the United States, on the thirtieth September, 1847 [1847], 139; DNA: RG 29, CS, La., New Orleans, 1850–60, 1870 mortality schedules; New-Orleans Times, 12 Nov. 1866).

Greenville (grenville) is in Augusta County. The letter to TJ from Benjamin morgan, not recorded in SJL and not found, was presumably another introduction of Dorsey that the latter retained.