The invasion preceded the Battle of Port Gibson, and Union troops had taken control of Windsor mansion, where Dwight sketched the only known drawing of the antebellum home.

[1] Shortly before the war ended, Dwight was commissioned a captain and left the military in 1865.

[1] In 1867, Dwight returned to Istanbul as a missionary for the American Board of Commissioners for Foreign Missions, where he edited publications of the Turkish language.

[1] During the Armenian Massacres of 1894–1896, Dwight had responsibility for guarding missionary interests in Turkey.

He was the author of several books:[2] Henry Dwight was married three times:[1] Mary Bliss (m. 1867–d.