What does it mean to have an American art collection? The Fine Arts Museums of San Francisco (FAMSF) had this question in mind in February, when it acquired 62 works from the Atlanta-based Souls Grown Deep Foundation, which promotes contemporary African-American artists of the South from beyond the gallery or art school system. FAMSF’s De Young museum has cleared its Modern and contemporary galleries for its new exhibition dedicated to the trove, Revelations: Art from the American South (until 1 April 2018).