St Mary Mumias Girls High School is a C2 or extra county girls school in Mumias West sub County in Kakamega County. In 2025 KCSE results, 20 students with A minus, 72 students with B plus and 106 students with B plain, 112 students with B minus. The minimum grade achieved was D plus. 1 student had this mean grade. Majority of the students ranged between B plus to C+ plus. The school had 88.98 % students transition to university.

Betty is a qualified teacher with a Bachelor of Education (Arts). In addition, she is a registered Certified Public Accountant. She has been teaching and offering part-time accounting services for the last 10 years. She is passionate about education, accounting, writing, and traveling.
