Cost of operating lumber trucks for Southern Pine Lumber Comp., Diboll, Texas Oil and gas purchases by Southern Pine Lumber Comp. Profit and loss statement for Southern Pine Lumber Comp. Corres. with Texas Unemployment Compensation Commission Corres. with C. M. McWilliams Corres. with Lufkin Chamber of Commerce Corres. with Lumberman's Assn. of Texas Statement of estimated reduction in expense Corres. with Railroad Retirement Board Statement of amount of lumber hauled by trucks for 1937 Corres. with G. M. Lee