Image uclamss_1300_0228i may document this photograph. Text reads, in part: Horseback Riding, Mrs A Bartlett, Anthony Burke, Leonard Lerner, Ruth Dunbar, Four people riding horses among trees next to the lake, Text from nitrate negative sleeve:
1929. 1 Calif. Lake Arrowhead. 11 1979, Handwritten on edge of negative: AH 135, Access to this collection is generously supported by Arcadia funds.