Mannes, Leopold Damrosch (26 December 1899–11 August 1964), pianist, educator, and scientist, was born in New York City, the son of David Mannes and Clara Damrosch Mannes, musicians. Mannes’s musical precociousness became apparent at age three. According to his mother, Eugène Ysaÿe called the youngster “the reincarnation of Mozart.” However, his parents carefully prevented his exploitation as a child prodigy. While he studied the piano in New York City with Elizabeth Quaile and Guy Maier, he also developed an avid interest in photography. In his last year of attending Riverdale Country School, he met Leopold Godowsky, Jr., a violinist and the son of the famous pianist, who also shared his keen interest in photography. Together they began physics experiments with color photography at the school and at the Mannes home. While attending Harvard College Mannes studied physics and music and continued his photography experiments....