Idaho's first native-born governor, Charles Benjamin Ross, was born near Parma, Idaho December 27, 1876. He was one of eight children born to cattleman John M. Ross and his wife Jeanette Hadley Ross. He attended school in Parma, ending his education after grade six. In 1894, at the age of 18, he decided to continue his education by attending business colleges in Boise and Portland, graduating from Portland Commercial College. He returned to the ranch in 1897 where he and his brother W.H. Ross managed the holdings which their father had developed.

On February 14, 1900 he married Edna Reavis, who was a natural politician and a great asset to her husband's career. When Ross became governor she was often referred to as "Governor Edna." Although they had no children of their own, they raised four foster children.

C. Ben Ross was elected county commissioner in Canyon County, a position he held for three terms (six years) resigning it when, in 1921, he moved to Pocatello to manage his father's estate in that town. In 1923 he was elected mayor of Pocatello, and remained in office until he was elected governor in 1930. When Ross took office as mayor, Pocatello had only a few blocks of paved streets, and a few more were gravel; at the end of his term 54 per cent of Pocatello's roads were oiled. He also improved the city's water supply and lowered taxes. His interest in roads and taxes continued into his terms as governor.

He ran for governor five times, the first in 1928 when he was defeated. On May 2, 1930 he again announced his intention of running for governor. This time he was successful, but, as a democrat, was handicapped by a republican legislature. The election of 1932 saw the return of Ross as governor, but this time with a democratic legislature; his unusual bid for a third term in 1934 was also successful. In 1936 he received the democratic nomination for U.S. Senate, but was defeated in the general election by the incumbent William E. Borah. In 1938 he again ran for governor, receiving the nomination in the primary by defeating B.W. Clark by only 2,200 votes. The general election saw his defeat by C.A. Bottolfsen by 28,571 votes.

Following this defeat Ross retired to his farm. He suffered a cerebral hemorrhage on April 12, 1945, the day of President Roosevelt's death, and lingered as a semi-invalid for almost a year. In mid March, 1946, he had a heart attack and on March 31 he died in St. Alphonsus Hospital, Boise. His wife refused to allow his body to lie in state in the Statehouse and he was buried quietly near his Parma home.