The academy is one of the foremost secondary schools in the country, and among its alumni have been Daniel Webster, Edward Everett, Lewis Cass (born in Exeter in a house still standing), John Parker Hale, George Bancroft, Jared Sparks, John Gorham Palfrey, Richard Hildreth and Francis Bowen.
Further search for the true source of the Mississippi was made in 1823 by Giacomo Constantio Beltrami (1779-1855), an Italian traveller and political refugee, and in 1832 by Henry Rowe Schoolcraft, who had accompanied Cass's expedition and traced the Mississippi from Lake Cass to Lake Itasca.
His brother, Lewis Cass Hunt (1824-1886), served throughout the Civil War in the infantry arm, becoming brigadier-general of volunteers in 1862, and brevet brigadier-general U.S.A. in 1865.
At the time of the Red Bird rising in 1827, Governor Lewis Cass of Michigan 'Territory made Prairie du Chien his temporary headquarters.
Harrison and Lewis Cass, by which the Wyandots, the Delawares, the Shawnees, the (Ohio) Senecas and the Miamis agreed to aid the United States in the war with Great Britain.
