Despite the Great Depression, more industry developed in the county in the 1930s. J&P Coats Company purchased the Capps Cotton Mill in 1937 and operated it for nearly 70 years, before textile manufacturing jobs moved offshore to cheaper labor markets. In 1938 industrialist R.G. LeTourneau opened a manufacturing plant for earth-moving equipment. Later that year the Toccoa Airport was constructed. During World War II, the LeTourneau plant produced equipment for use by the military, employing 2000 people in this effort. In addition the US Army developed Camp Toccoa here, for training paratroopers.
