A very similar picture appears with "Bridge Party to Benefit Maryknoll Fathers' Missionary Work Scheduled," Los Angeles Times, 14 Apr 1935: B5. The two pictures were taken a year apart in the same house, with one of the same girls.
Pat Richards sits in a beach chair while Dorothy Walsh kneels beside her and Janet Hubbard stands next to Dorothy. They are on a beach, in front of a cabana, wearing clothing that they will model at their Social Service Auxiliary March 5th luncheon-fashion show.