Other
Pennsylvania
Kessler, Carl August, 1769?-1823
1
Kessler, Carl August, 1769?-1823,
1
Pennsylvania Institution for the Deaf and Dumb
1
Pennsylvania Training School for Feeble-minded Children (Elwyn)
1
Pennsylvania Training School for Idiotic and Feeble-Minded Children (Elwyn)
1
Ritter, John, 1779-1851
1
Ritter, John, 1779-1851,
1
United States
1