The company first began in 1939 as a family-owned business called J.L. Turner and Son in Scottsville, Kentucky by James Luther Turner and Cal Turner. In 1968 the name changed to Dollar General Corporation and the company went public on the New York Stock Exchange.
Dollar General has its origins in Scottsville, Kentucky from James Luther "J.L." Turner and his son Cal Turner. James Turner's father died in an accident in 1902 when James was only 11. James had to quit school and never completed his education so he could work the family farm and help provide for his mother and siblings. After two unsuccessful attempts at retailing, James became a traveling dry goods salesman for a Nashville wholesale grocer. James left the sales job after 10 years and settled his family in Scottsville, Kentucky. During the Great Depression, he began buying and liquidating bankrupt general stores.
In October 1939, James and Cal opened J.L. Turner and Son with an initial investment of $5,000 each. The switch to retailing resulted in annual sales above $2 million by the early 1950s. By the mid-1950s Turner had 35 department stores in Kentucky and Tennessee. In 1955 Cal Turner developed his idea of a retail store selling goods for a dollar, based on the Dollar Days promotions held at other department stores, by converting Turner's Department Store in Springfield, Kentucky into the first Dollar General Store. In 1964 J.L. Turner died leaving his son Cal Turner to succeed him.
On September 15, 2016, Dollar General announced plans to hire 10,000 new employees and open 900 new stores in fiscal 2016 and 1,000 in fiscal 2017. Dollar General had operated 13,000 stores as of August 2016. Dollar Express and all of its 323 locations were acquired by Dollar General in April 2017. In Jackson, Georgia, Dollar General will open a 15th distribution center in fall 2017 to serve stores in Georgia and the surrounding states.
According to wikipedia