[1] The museum provides residents and visitors with access to a nationally recognized permanent collection and a rotating schedule of exhibitions, musical concerts, lectures, films, art classes and special events for children and adults throughout the year.

[3] The New York architectural firm of Hyde & Shepherd designed the original building for the Washington County Museum of Fine Arts.

William was an American post-impressionist painter influenced by the European atheistic crosscurrents of the late 19th century, and the son of a Pittsburgh steel magnate.

Apart from founding the Washington County Museum of Fine Arts, the couple made numerous philanthropic gifts to churches, towns, and hospitals in Norway, the Netherlands, and the United States.

Classic works by American impressionists Childe Hassam and Willard Leroy Metcalf, came into the collection through William and Anna Singer's friendships with these artists.

The Ashcan School has excellent examples of paintings by George Luks, Robert Henri, William Merritt Chase, Arthur B. Davies, and Eduard Steichen.

European Old Masters such as Saints Mary Magdalene and Paul by Giovanni Mazone and Jusepe de Ribera are hung in the museum's Schrieber Gallery.

[9] Since Anna's death, the museum has continued to collect 20th-century and contemporary art, and owns significant works by Milton Avery, Philip Guston, Norman Rockwell, Frank Stella, Helen Frankenthaler, Grace Hartigan, Robert Indiana,[10] and Emily Clayton Bishop.