11Samuel L. Mitchill to Thomas Jefferson, 16 May 1820 (Jefferson Papers)
disabilities, persons with; and education for deaf, mute, and blind [index entry]
12Fernagus De Gelone to Thomas Jefferson, 14 June 1820 (Jefferson Papers)
disabilities, persons with; and education for deaf, mute, and blind [index entry]
13Thomas Jefferson to Fernagus De Gelone, 22 June 1820 (Jefferson Papers)
disabilities, persons with; and education for deaf, mute, and blind [index entry]
14Fernagus De Gelone to Thomas Jefferson, 29 June 1820 (Jefferson Papers)
disabilities, persons with; and education for deaf, mute, and blind [index entry]
15Thomas Jefferson to Fernagus De Gelone, 7 July 1820 (Jefferson Papers)
disabilities, persons with; and education for deaf, mute, and blind [index entry]