21Charles Willson Peale to Thomas Jefferson, 20 May 1817 (Jefferson Papers)
museums; Philadelphia Museum [index entry] Peale, Charles Willson; and Philadelphia Museum [index entry]
22James W. Wallace to Thomas Jefferson, 11 January 1818 (Jefferson Papers)
museums; Philadelphia Museum [index entry] Peale, Charles Willson; and Philadelphia Museum [index entry]
23Charles Willson Peale to Thomas Jefferson, 15 January 1818 (Jefferson Papers)
Congress, U.S.; proposed offer of Philadelphia Museum to [index entry] museums; Philadelphia Museum [index entry]
24Gerard Troost to Thomas Jefferson, 21 July 1818 (Jefferson Papers)
. By 1821 he was teaching mineralogy at the Philadelphia Museum and chemistry at the
25Charles Willson Peale to Thomas Jefferson, 25 November 1818 (Jefferson Papers)
museums; Philadelphia Museum [index entry] Peale, Charles Willson; and Philadelphia Museum [index entry]
26Charles Willson Peale to Thomas Jefferson, 1 January 1819 (Jefferson Papers)
Congress, U.S.; proposed offer of Philadelphia Museum to [index entry] museums; Philadelphia Museum [index entry]
27Thomas Cooper to Thomas Jefferson, 13 [March] 1819 (Jefferson Papers)
museums; Philadelphia Museum [index entry] Peale, Charles Willson; and Philadelphia Museum [index entry]
28Charles Willson Peale to Thomas Jefferson, 4 January 1821 (Jefferson Papers)
Peale, Charles Willson; and Philadelphia Museum [index entry]