Sears Gallagher (1869–1955) was a Boston-born artist celebrated for his mastery of watercolor, oil painting, and especially etching. He trained under Tommaso Juglaris and S.P.R. Triscott, later studying at the Académie Julian in Paris. Gallagher was a prolific etcher, producing hundreds of finely detailed prints of Boston, New York, and the New England coast, earning comparisons to James McNeill Whistler. His watercolors, often painted on Monhegan Island, where he spent over fifty summers, reflected a sensitive, light-filled approach akin to that of Winslow Homer. Gallagher exhibited widely throughout the U.S. and Europe, and his work is held in the collections of the Museum of Fine Arts, Boston, the Library of Congress, and the Bibliothèque Nationale in Paris.