Tab 1 is a map of the 320 museums (US & Canada) that have at least one of 24 Hudson River School artists.
Tab 2 lists State>Museums>Artists>Works by Artist>jpg of that particular painting - 3,020 images! (out of 3,065 listings)
....................................................# of............# of..........# of
artist..........................................museums... listings.. images
Albert Bierstadt (1830-1902).. 171 426 417
William Bradford (1823-1892).. 50 85 85
Alfred Thompson Bricher (1837-1908) 77 112 105
Frederic Edwin Church (1826-1900) 81 165 164
Thomas Cole (1801-1848)..... 96 206 206
Jasper Cropsey (1823-1900)..... 107 197 195
Robert Scott Duncanson (1821-1872) 46 80 79
Asher Brown Durand (1796-1886) 86 149 149
William C.A. Frerichs (1829-1905) 7 17 17
Sanford Robinson Gifford (1823-1880) 76 133 133
William Stanley Haseltine (1835-1900) 61 106 101
Martin Johnson Heade (1819-1904) 58 96 95
Thomas Hill (1829-1908).... 64 124 121
Daniel Huntington (1816-1906) 18 23 22
David Johnson (1827-1908) 52 72 71
William Keith (1838-1911) 41 117 117
John Kensett (1816-1872) .... 110 191 188
Edmund Darch Lewis (1835-1910) 20 23 21
Homer Dodge Martin (1836-1897) 38 77 74
Jervis McEntee (1828-1891) 40 51 50
Alfred Jacob Miller (1810-1874) 35 123 123
William Trost Richards (1833-1905) 100 276 275
William Sonntag (1822-1900) 63 84 83
Worthington Whittredge (1820-1910) 81 132 129