In 2000, an exhibition of paintings inspired by views of the Oxbow in the Connecticut River, subject of Thomas Cole's "The Oxbow" (1836), included Hannock's "The Oxbow: After Church, After Cole, Flooded, (Flooded River for the Matriarchs, E. & A. Mongan), Green Light" (2000) It is held in the permanent collection of the Metropolitan Museum of Art. Washington, D.C.; the Whitney Museum of American Art, New York, N.Y.; the Museum of Contemporary Art, San Diego, CA; and the Museum of Fine Arts, Boston, MA.