Sena Yesslith has served in multiple leadership roles within the Seminole Nation and her community, culminating in her election as the first woman Chief of the Seminole Nation. Her service includes ten years as a Housing Commissioner and three terms as a General Council Representative for the Mekusukey Band. Through this role, she not only advocated for her Band members but for all members of the Nation.

Mrs. Yesslith has been deeply involved in education advocacy through the Johnson-O’Malley (JOM) programs at Varnum and Strother Public Schools, where she served as secretary for several years and as chairman for four years. She also served as an advocate for all Native American students and parents in the school systems.

With a strong commitment to community wellness and youth advocacy, Mrs. Yesslith dedicated a combined of just under nine years serving children and families through the Absentee Shawnee Tribe Indian Child Welfare Program as the Promoting Safe and Stable Families worker and a Parent Aid through Eastern Oklahoma Youth Services. She also spent nearly thirteen years supporting members, families, and elders through both the Wewoka Indian Health Service Diabetes Program two years and Blackhawk Health Center just under eleven years, where she served in medical records as the Release of Information Clerk and then as Patient Registration Manager. As the Manager, she also participated in the Native Homeless Alliance, Sac and Fox Multi-Disciplinary Team and advocated to better serve her patients, she assisted in helping to write and obtain the grant Pathways to Community Living with OHCA and CMS.

Mrs. Yesslith is known as a motivated, dependable leader with a strong commitment to learning and personal growth. She values integrity, adaptability, and continuous self-improvement, and approaches each role with a positive mindset and dedication to meaningful service.