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Super-t-Art photographer, 5 letters
___ -Barre, Pennsylvania, 6 letters
Assassin's middle name, 6 letters
United States explorer of Antarctica (1798-1877), 6 letters
Polar explorer George Hubert ___, 7 letters
United States civil rights leader (1901-1981), 7 letters
Australian who was the first to explore the Arctic by airplane (1888-1958), 7 letters
English biochemist who helped discover the structure of DNA (born in 1916), 7 letters
Agent in David Copperfield, 15 letters
Dickens character who says Something will turn up, 15 letters
Improvident optimist, 15 letters
English chemist honored for his research on pollutants in car exhausts (born in 1921), 9 letters