The TracyLocke company was started in Oklahoma City in 1913 by founders Shelley E. Tracy (of Vernon, TX) and Raymond P. Locke. Within two years, the company began expanding throughout the region, including an office in Dallas, which soon became the company's headquarters. While the company has expanded into several satellite offices around the nation, it has remained one of the premier advertising companies of the Southwest, serving such regional clients as Haggar, Mrs. Baird's, Frito-Lay, Dr. Pepper, and Imperial Sugar. The TracyLocke company is responsible for many branding campaigns that have integrated products into the fabric of everyday culture: they coined the term "slacks" while working with Haggar, created the "10-2-4" slogan for Dr. Pepper, and invented the name "7-Eleven."