Mary Jane Thomas, Hank Williams Jr.'s wife, died from a collapsed lung a day after she had undergone surgery. Mary Jane's death is being classified as an accident by the Palm Beach County Medical Examiner. Mary Jane had her breast implants removed during a surgery in March, according to the Medical Examiner. According to the M.E., she died the next day. The story was broken by the gossip website. According to a family member, Hank's wife died March 22 in Jupiter, FL, after having surgery. The initial theory seems to be in line with reality. Mary Jane was about to be seen by her plastic surgeon in her hotel room when she became unresponsive. Mary Jane passed away about an hour after she lost consciousness.