Irving Penn’s photographs from the 1967 San Francisco Summer of Love.

Irving Penn. Hippie Family (Kelley), San Francisco, 1967. Platinum-palladium print. 16 5/8 × 14 3/16 in. (42.2 × 36 cm).

A black and white photo of a nuclear family

“Irving Penn” is on view at the de Young Museum through July 21.

Irving Penn’s photographs from the 1967 San Francisco Summer of Love.