Click on the links below to contact members of the POSSE staff.
Jesse Martin
POSSE Director
Ellen Ayres
Assistant Development Director
Clay Billman
Publications Coordinator
Stephanie Boese
Athletic Development Assistant
Karyl Henry
Premium Services
Mary Lewis
Programs Coordinator / Benefits
Andy Sumrall
Event Coordinator
From modest beginnings to a driving force!
The POSSE was formed in 1964 by five OSU graduates with the premise of helping persuade young football talent to attend OSU. The first meeting was held in 1964 at Whit’s Café in Oklahoma City. The five decided on the name “The Posse Club” and elected officers. They began having meetings and charging dues to increase membership and raise money ...

The POSSE is made up of alumni, friends and fans of Oklahoma State Athletics.

Entirely self-supporting, the OSU Athletic Department receives no state funds. As the cost of higher education and maintaining a successful athletic program continues to escalate, sustained private contributions are critical.

Funds raised by the POSSE support over 450 Cowboy and Cowgirl student-athletes through scholarships (including tuition, fees, room, board and books) on an annual basis. Donations to the POSSE also supplement general operating costs, maintenance and upkeep of facilities and budget support for individual sports.

With OSU Athletics relying primarily on revenue from donations, donor seating and ticket sales to meet budget needs, the POSSE is the lifeblood of the program.