Abstract Art collectors Walter and Louise Arensberg amassed a seminal collection of modern and Pre-Columbian art between 1913 and 1950, when they presented it to the Philadelphia Museum of Art. The Arensberg Archives contain correspondence, ephemera, clippings, writings, personal and art collection records, and photographs documenting the couple's art collecting activities as well as their friendship with many important artists, writers and scholars, including Marcel Duchamp, Charles Sheeler, Walter...