by Megan Fontanella, Julie Barten, Susan Davidson, John K. Delaney, Lidia Ferrara, Vivien Greene, Sasha Kalter-Wasserman, Natalia Lauricella, Gillian McMillan, Nathan Otterson, Federica Pozzi, Samantha Small, Lena Stringari, Jeffrey Warda, Jeffrey Weiss
When Justin K. Thannhauser (1892-1976) brought his collection of modern art to the Solomon R. Guggenheim Museum in 1965, it was his crowning achievement after more than a half-century as one of Eur…