Mark American Horse, age 62, of Tulsa, OK, passed Friday, September 17, 2021, in VCU/Community Memorial Hospital. He served as a United States Marine and member of the Force Recon Brothers. Mark is survived by his wife, Sara J. American Horse (nee Milligan) and five children: a daughter, Jenny Myrick and husband, Kirk, of Baxter Springs, Kansas and four sons, Rick Mitchell and wife, Michelle, of Keller, TX, Mark American Horse and wife, Kiana, of Bixby, OK, Zane Powers and wife, Heather, of Collinsville, OK, and James American Horse of Bentonville, Arkansas. He is also survived by his Mom and Dad, Shirley Ann and James Slate of Haskell, OK; and three siblings, Debra and husband, J.C. Wilson, of Tahlequah, OK, Delphine and husband, Randy Brinlee, of Groton, South Dakota, and Dawson American Horse and wife, Gilla, of Marysville, Washington. Mark has twelve grandchildren, Josephine, Reese, Griffin, Adrian, Koen, Jaxon, Mason, Brandon, Tyler, Melia, Peyton, Eli and Tatum; as well as one great grandchild, Cayson. Mark was preceded in death by his father, Wesley W. American Horse and daughter, Faith American Horse.  Interment will be held at 1:00 p.m., Wednesday, September 29, 2021 at Fort Snelling National Cemetery,  Minneapolis, Minnesota. If desired, memorial contributions in Mark's name may be made to the "Toys for Tots" Foundation, 18251 Quantico Gateway Dr., Triangle, VA 22172. Memorial contributions may also be made to The American Cancer Society at www.cancer.org