Robert Gilmour LeTourneau (November 30, 1888 – June 1, 1969), was born in Richford, Vermont, and was a prolific inventor of earthmoving machinery.
His factories supplied LeTourneau machines which represented nearly 70 percent of the earthmoving equipment and engineering vehicles used by the Allied forces during World War II, and more than half of the 1,500-mile (2,414 km) Alcan Highway in Canada was built with LeTourneau equipment.
Over the course of his life he secured nearly 300 patents relating to earthmoving equipment, manufacturing processes and machine tools.
The LeTourneau name became synonymous with earthmoving worldwide.
LeTourneau was largely responsible for the invention and development of many types of earthmoving machines now widely used.
He designed and built machines using technology that was years, sometimes decades, ahead of its time and became recognized worldwide as a leader in the development and manufacture of heavy equipment.
The use of rubber tires in earthmoving; numerous improvements relating to scrapers; the development of low-pressure, heavy-duty rubber tires; the two-wheeled tractor unit ("Tournapull"); electric wheel drive, and mobile offshore drilling platforms, are all attributed to LeTourneau’s ingenuity.
With the help of his wife, the late Evelyn Peterson (1900-1987), he founded LeTourneau University, a private, Christian institution, in Longview, Texas.
LeTourneau was widely known as a devoted Christian and generous philanthropist to Christian causes, including the "LeTourneau Christian Center" camp and conference grounds in Rushville, New York and Georgia Baptist Conference Center in Toccoa, Georgia.
LeTourneau was often referred to by his contemporaries as "God's businessman."