Includes R.G. LeTourneau's signature when he spoke as an evangelist
Commemorating the November 29, 2004, Designation by the A.S.M.E. of R.G. LeTourneau's Mountain Mover at LeTourneau University, Longview, TX, as an Historic Mechanical Engineering Landmark
By John H. Nielmela, Ph.D. and Dale Hardy, Research Assistant