From the Western Pacific Railroad Historical Society web site:
"UNCLE SAM TAKES OVER
On December 28, 1917, with the United States several months a beligerent in the European War, President Woodrow Wilson seized control of the nation’s railroads. The United States Railroad Administration was set up by Congress, headed by William Gibbs McAdoo, Wilson’s son-in-law. On July 1, 1918, McAdoo appointed William R. Scott, vice-president of Southern Pacific, to manage that system as well as the Santa Fe Coast Lines and Western Pacific.
It was not a happy time for WP, although the USRA added ten Mikado engines, Nos. 301-310, 60,000 pounds tractive effort, to the roster, and although the Feather River Route was carrying heavy trains of war freight and “doughboys.” Several of the measures introduced by Scott were bitter pills to the Western Pacific officers. One was the “paired track” operation of S.P. and WP between Winnemucca and Wells, 182 miles, where the tracks were parallel. Another was folding up Western Pacific’s ferry and barge service on San Francisco Bay, its passenger trains being diverted to the S.P. Mole and its San Francisco freight moving via Dumbarton cutoff.
But on August 31, 1919, Colonel Edward W. Mason, who had come to WP as a car accountant ten years before and served in France with the U. S. Army Railroad Corps, was appointed Federal Manager of the Western Pacific and the road again rejoiced in a family hand on the throttle. On March 1, 1920, when complete independence was achieved again with the return of the roads to private ownership, Mason became general manager, and later vice-president and general manager, a post he was to hold until his retirement on June 30, 1946.
Like most railroads the Western Pacific was in deplorable physical condition when the Government relinquished control. After a year’s haggling it received almost $9 million in damages. Most of the money went to purchase control, on December 23, 1921, of the Sacramento No