Donna Cassidy taught in both the Art Department and the American & New England Studies Program. Over her career at USM, she taught a range of courses on 19th and 20th century European art, gender and modern art, and the visual culture of the United States. She has published widely on modernism and regionalism in early 20th century American art. She is the author of Painting the Musical City: Jazz and Cultural Identity in American Art, 1910-1940 (1997) and Marsden Hartley: Race, Region, and Nation (2005), and co-author (with Elizabeth Finch and Randall R. Griffey) of Marsden Hartley’s Maine (2017), the catalogue of the exhibition of the same name which she co-curated at the Metropolitan Museum of Art and Colby College Museum of Art. She is now focused on two research projects: she is Guest Curator for a 2023 exhibition at the Ogunquit Museum of American Art—Shifting Sands: Beaches, Bathers and Modern Maine Art—, and she is working on a new book—Looking North: U.S. Artists in Quebec and Atlantic Canada 1890-1940—which examines an unexplored region of artistic interest for early 20th century American artists.