 Later in the 1900s Griffith joined the American School of Correspondence, a distance education high school founded in 1897.For the Department of Commerce, Accountancy, and Business Administration Griffith wrote a series of instruction papers, among others on "Advertising & Sales Organization" (1909), "Purchasing and stores department" (1909), "Records of labor and manufacturing orders" (1909), "Theory of Accounts" (1914).Griffith was head of the Department of Commerce, Accountancy, and Business Administration until the late 1910s.