Blanchard was born on October 16, 1910, the son of Mr. and Mrs. Roscoe W. Blanchard, Sr. He was brought to the San Fernando Valley when he was a year old, was educated locally and, after graduating from high school, he joined his father's North Hollywood firm, Blanchard Lumber Company, of which he later became owner. He was a "lifelong supporter" of the East Valley YMCA and president of the North Hollywood Kiwanis and the Al Malaikah Shrine Temple. In 1967 he was named to the national board of the YMCA. He died August 13, 1986, in North Hollywood. He was survived by his wife, Frances; two children, Carol Sanders and Ross Lemoine Blanchard; a brother, Roscoe W. Blanchard, Jr., and two sisters, Dorothy Camp and Maude Humm. Funeral services were held in the First Christian Church of North Hollywood.