Tidewater Associated Oil Company. In matter of Tidewater Associated Oil Company and American Radio Telegraphists' Association; in matter of General Petroleum Corporation of California and American Radio Telegraphists' Association; in matter of Hillcone Steamship Company, Ltd., and American Radio Telegraphists' Association; in matter of Union Oil Company of California and American Radio Telegraphists' Association [decision and direction of elections], case no. R-515 to R-518, decided Mar. 14, 1938.