1Thomas Jefferson to Thomas Cooper, 14 August 1820 (Jefferson Papers)
Lactantius, Lucius Caecilius Firmianus (early Christian author) [index entry]
2Thomas Jefferson to John Adams, 15 August 1820 (Jefferson Papers)
Lactantius, Lucius Caecilius Firmianus (early Christian author) [index entry]
3Henry Guegan to Thomas Jefferson, 9 September 1820 (Jefferson Papers)
Lactantius, Lucius Caecilius Firmianus (early Christian author) [index entry]