Mark Wayne Cook was born to C.W. "Sonny" Cook and Jan Suzanne Leatherman on February 10, 1967, in Ponca City, Oklahoma. He entered into his eternal home November 23, 2025.

During his childhood, Mark spent time on the family farm, where he developed a love for raising animals, gardening, and antique shopping. In his youth, he enjoyed wrestling and playing football. He graduated from Ponca City High School and later earned an Associate's Degree in Printing Technology from Northern Oklahoma College.

Mark spent several years in Arizona, where he worked the ranch alongside his brother. He was social, kind, and full of life. He found joy in hunting, fishing, and camping with friends and family. He cherished time at Kaw Lake, his "home away from home". Above all, his children were his greatest pride and joy.

He is survived by his father, C.W. "Sonny" Cook and his wife, Gerrie Lynn Cook of Oklahoma City, OK; his children, Blake Wayne Cook of Ponca City, OK, Angela Marie Cook of Stillwater, OK, and Justin Lee Cook of Ponca City, OK; his brother, David Lee Cook and his wife, Diana of Globe, AZ; and his aunts, Christi Leatherman of Grapevine, TX, Tammy Stewart of Bartlesville, OK, and Kay Duroy and her husband, Chris of Shawnee, OK.

Mark was preceded in death by his maternal grandparents, James Robert and Mary Ruth Leatherman, his paternal grandparents, Clarence Wayne and Joyce Marie Cook, and his mother, Jan Suzanne Leatherman.

Memorial contributions can be made to:

Cherokee Nation At-Large Mutual Assistance, Inc.
PO Box 883
Broken Arrow, OK 74013