"Sonoma County Junior Riding and Driving Club." . . . . . . . . . . . . "[Elva Rossi of the California Centaurs mounted junior drill team holding a trophy at the Wikiup Horse Show on the Wikiup Ranch near Santa Rosa, Calif., 1946]" . . . "Left to right Donnie Ford, Sam Wood, Frank Devencenzi." . "Aerial photographs" . . "California Centaurs" . . . . "Sonoma County Fairgrounds (Santa Rosa, Calif.)" . .