Kris Kristofferson led one of the most interesting lives of any songwriter in country music, and it shows in the richly textured and subtly nuanced songs that he wrote. The iconic songwriter started life as the son of a military officer, and he moved around the country before ending up in California, where he graduated high school. Kristofferson was a gifted student and athlete, and he earned a Rhodes scholarship to Oxford University, where he took part in rugby and boxing before earning a Master’s degree in English Literature. He also served as a helicopter pilot in the Army and refused a pos…