Mulhaupt was known as the “Dean of the Cape Ann School” because of his extraordinary ability to capture the experience and atmosphere of harbor activity in Gloucester, Massachusetts. The artist was particularly acclaimed for busy maritime scenes, which won him wide patronage and critical acclaim. He spent considerable time drawing outdoors, and his large paintings were clever reconstructions of scenes based upon these sketches. A fellow Cape Ann painter, Emile Gruppé, aptly characterized Mulhaupt’s style and special relationship with Gloucester when he wrote:
The artist’s works are in a number of prestigious public and private collections, including the National Academy of Design, New York; the Fogg Art Museum, Harvard University, Cambridge, Massachusetts; the Reading Public Museum, Reading, Pennsylvania; the Cummer Museum of Art, Jacksonville, Florida; the Indianapolis Museum of Art, Indiana; and the University of Michigan Museum of Art, Ann Arbor, Michigan, among others.
Emile Gruppé, Gruppé on Painting: Direct Techniques in Oil (New York: Watson-Guptill Publications, 1976), p. 89