Belle da Costa Greene. Morgan Library visionary. One of the most prominent and influential librarians in history. Democratizer of museums. And, until two decades after her death, no one outside her family knew she was passing as white.Article continues after advertisementRemove Ads We know a lot about public-facing Belle: she was JP Morgan’s personal librarian … Continue reading On the Life of Belle da Costa Greene, Visionary Librarian and Democratizer of Museums