Harry Callahan: A Life in Light and Shadow Harry Morey Callahan (1912-1999) wasn’t a name that frequently echoed through the halls of 20th-century art circles during his lifetime. Yet, beneath the surface of his seemingly quiet dedication to photography lay an artist of profound depth and innovation—a chronicler of urban life, a master of subtle shifts in light and form, and a deeply personal observer of human relationships. Born in D…