“Who will continue to sing the lineage?” Filmmaker and novelist Khady Sylla and her sister Mariama, “united in a quest for past time,” sought to record the presence and sagacity of their grandmother Penda Diogo Sarr in her village, Barela Ndiaye. Sarr is a griot, guardian of the Wolof oral genealogical tradition. From the perspective of a generation steeped in the written word,...