2023 deaths in the United States - Wikipedia
Former Cowboys, Bears RB Marion Barber III's death caused by heat
On the Border with Crook, by John G. Bourke
Marion Barber's cause of death revealed after former Dallas
Former Dallas Cowboys star Marion Barber III died from heat stroke
Texas medical examiner: Marion Barber III died from heat stroke
Former Gophers tailback Marion Barber III dies – Twin Cities
Cause of Death Revealed For Former NFL Star Marion Barber
Former #Cowboys Marion Barber's death as a result of a heat stroke
association of graduates, usma - USMA Library Digital Collections