Complex sentence: After graduation in 1952 from Baylor School, a private high school in Chattanooga, Tennessee, James was a four-year letterman (1952--1955) and All-American halfback for the Auburn University football team playing for head coach Ralph "Shug" Jordan.
Split into simpler sentences: After graduation in 1952 from Baylor School, a private high school in Chattanooga, Tennessee. James played football (1952--1955) at Auburn University, where he played for head coach Ralph "Shug" Jordan.