She is survived by her parents, Ray and Rebeca Marshburn; 3 brothers, Trey, Aaron, and Chase; her maternal grandparents, Miguel and Rebeca Fernández; her paternal grandparents, Raymond and Alicia Marshburn; several aunts, uncles, cousins, and friends.
In lieu of flowers, memorial contributions may be made in Courtney's name to The Leukemia & Lymphoma Society, 950 Isom Rd, Ste. 104, San Antonio, Texas 78216 or Transplants for Children, 7550 IH 10 West, Ste. 104, San Antonio, Texas 78229.