company's Industrial Relations Division, stopped by the Luzerne carbarn and asked the workers to return to work. Subsequently, he suggested that WMC temporarily suspend the non-discrimination order, and even brought a pile of freshly printed fliers with a suspension announcement to the WMC offices. However, the WMC officials refused to approve suspension of the FEPC order and Mitten's suspension fliers were not distributed. On the morning of August 1, PTC officials immediately shut down the high-speed lines, even before the strike had spread, and instructed the company supervisors to stop selling tickets. The PTC left its carbarns open, which allowed the strikers to use the carbarns as rallying points and coordinating centers for their activities. The company also cancelled the regularly scheduled meeting of its executive committee, where the response to the strike could have been discussed, and refused to join the TWU in a radio broadcast urging the strikers to return to work. The TWU officials denounced the strike and pleaded with the PTC employees to resume work, but without success. The city's mayor, Bernard Samuel, closed all alcohol-selling establishments in an effort to prevent drunken crowds. Governor Edward Martin followed suit and closed the state liquor stores in the area. The city deployed its full police force, with extra police officers posted at major intersections and other vital points. The NAACP, as well as other black civic groups, worked energetically to maintain calm among the black people of Philadelphia. They distributed more than 100,000 posters in black sections of the city, which read "Keep Your Heads and Your Tempers! ... Treat other people as you would be treated". The strike continued on August 2. About 250 TWU members initiated a back-to-work movement but were quickly forced to back down by the strike's leaders and supporters. At the end of the day, William H. Davis, head of the War Labor Board, wrote to President Roosevelt that the WLB had no jurisdiction over the situation and that it was up to the President to intervene. Representatives of the WMC and the FEPC had reached a similar conclusion about the need for the President's intervention the day before. Military takeover of the PTC The Roosevelt administration felt that it needed to act quickly to stop the strike. War plants in Philadelphia reported debilitating absentee rates in their workforce due to the strike, which was causing significant damage to the city's war