For a long time it was thought that the museum had discarded most of her work. In 2000, the writer Elizabeth Thompson Colleary discovered about 200 Jo Hoppers in the Whitney's basement. Colleary says Jo was an 'uneven' artist, but in general she thinks the work is good: 'I said to myself, "I will not resurrect this woman solely on the basis of the fact that Edward Hopper was her husband."' A few more works are known from photographs Jo made, as reproduced in Levin.