Mount Desert Post Office, 1057 Main Street, Somesville, Mount Desert, Hancock County, ME

"Mount Desert post office was established on 12 March 1821. It was renamed on 6 Match 1885 as Somesville post office. Somesville post office never opened, and on 19 March 1885 was renamed as Mount Desert post office, which is still operating" [in a new location] ("Mount Desert Postal History" at V. F. Thomas Co. [http://www.vfthomas.com/MDI%20Cultural%20History%20Project/MDIpostalhistory/MountDesertpostalhistoryhome.htm#MountDesert : accessed 13 March 2025]).

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