They had a great eye for art. They developed friendships with artists, and really took the time to study art and make an educated choice. When meeting with artist James Siena, he saw that what "distinguished them from art collectors on one level was that they wanted to see everything. I'd show them one thing, and they'd say, 'Let me see something like that.' I'd show them, and they'd be 'Let me see another thing like that.' And they had to create a sort of mini-survey of my development."
The art that they collected spanned to over 4,782 works. And they ended up having quite valuable artwork by artists like Cindy Sherman, Roy Lichenstein, and Richard Tuttle. The artwork was cramming their tiny one-bedroom apartment. “Not even a toothpick could be squeezed into the apartment,” Dorothy had said. They transferred their collection to the National Gallery of Art in 1992 because they don't charge admission, they don't sell donated work, and they felt, as they had worked as civil servants for the city and government, they wanted to give back, and allow the public to see their art collection. That was an incredibly giving gesture of them, and so wonderful to see. They ended up donating 2,500 art pieces to fifty art institutions across fifty states.