“Our Devoted Origins” is a curatorial experiment that questions the memories and myths created around absent figures in our families, making connections between religion, language and blood. The exhibition centers on Manuel Mosquera Garcés, an Afro-Colombian politician and journalist. Garcés died in 1972, yet ideas based on his Catholic and conservative thought still live on in several generations of his descendants — ideas that are reflected in their bodies, names and beliefs. Gallery, Center for Public Humanities, Nightingale-Brown House, 357 Benefit Street. (The entrance is on Williams Street.)