George Washington in prayer at Valley Forge
1778
1778
1950
1976-07-18
circa 1864
circa 1900-1910
1742
1836
1894
circa 1797-1806
1917-12
circa 1917
1795
1859
1776-07-13
circa 1860
1803
circa 1930
circa 1817
circa 1861
1862
1950-04-24
1944
1904
circa 1892
2001-03-17
1976-06-07
1976-03-03
1976-08-12
1806-10-15
circa 1820-1825
1883
1902
1950s
circa 1863
1839-01
circa 1829-1832
circa 1941
circa 1925
1976-07-16
1888-10
circa 1800-1900
1850 or 1851
undated
circa 1840
circa 1850
circa 1936
circa 1890
circa 1900
1976-06-16
1975-12-15
circa 1920-1930
1976-07-06
1903-05-02
circa 1904-1930
1894-07-08
circa 1835
circa 1850-1880
circa 1754
1831
circa 1830