SOUTHERN PACIFIC’S Lightweight streamlined cars: More than just the Daylight, Part 2 by V. S. Roseman Photos by V. S. Roseman unless otherwise noted 1. The 1946 San Joaquin Daylight with (left to right), a full bag- gage car, baggage/RPO car, and 4-8-2 Mountain locomotive with skyline casing. Part 2: New streamliners added, and their operations Shortly after the delivery and inspection of the first Daylight cars on the Southern Pacific, additional chair cars were ordered for the San Francisco Challenger on the Overland route to Chicago, and for the Californian on the SP-Rock MRHMAG.COM • TABLE OF CONTENTS • INDEX