Ohio River. Surface water supply of United States, 1931: pt. 3, Ohio River basin; Nathan C. Grover, chief hydraulic engineer, E. D. Burchard, J. J. Dirzulaitis, H. E. Grosbach, A. W. Harrington, Wm. Kessler, W. R. King, Lasley Lee, and J. H. Morgan, district engineers.