John William Hill, View of Niagara Falls, Watercolor, Overall: 23 3/4 x 32 x 1 1/2 in. (60.3 x 81.3 x 3.8 cm), Collection of Art in Embassies, Washington, D.C.; Gift of Joseph P. Carroll to the Foundation of Art and Preservation in Embassies, Washington, D.C.