Tioga Staff

NOTE: To contact an individual through EMAIL, simply click on their name.

Ryan Dutton / Principal

Credential: Multiple Subject, Single Subject Mathematics, Administrative Services Credential
College: Minnesota State University
Degree/Major: B.S. in Finance
Interests: Coaching, teaching, sports, camping, fishing, working out, giving back to the local community, family (wife Dawnelle teaches at Tioga, daughters Raygen and Reese), fitness and nutrition
Classes taught: Personal Finance, Weight Training/Conditioning, Landscaping

Cindy Green / Secretary

Raised in Groveland
Attended Big Oak Flat Elementary, Groveland Elementary, and Tenaya Elementary, Sonora High School. Columbia College, Sacramento City College
Registered Dental Assistant for 32 years
BOFGUSD Board of Trustees 2001-2006, resigning to take my dream job as
Principals Secretary of Tioga High School
I share my time with the love of my life Billy, the best son in the world Pat, wonderful daughter in law, Shelbi and of course the most precious granddaughters Paje and Jaycie

Dawnelle Dutton

Credential: Single Subject Physical Education, Administrative Services Credential
College: CSU Stanislaus
Degree/Major: B.S. in Physical Education / Kinesiology
Classes taught: Aerobics, Journalism/Yearbook at Tioga, Physical Education at Tenaya
Interests: Coaching Softball, teaching fitness classes and nutrition to students and adults, family (Tioga High Principal Ryan Dutton is husband, daughters Raygen and Reese), camping, working out, helping others and giving back to her local community in Groveland.

Sheri Gempler

Credential: Mild-Moderate Special Education, Multiple Subject & Single Subject Credentials
College: Brandman University, Delta College, CSU Stanislaus
Degree/Major: B.A. in Organizational Communication, A.A. in Fashion Merchandising, Masters Degree
Classes taught: Online, Special Education, teaching both of these classes at Tioga High and Don Pedro High.
Interests: Family (husband Jeff and daughters Taylor, Kylie, and Cassidy), getting kids college classes while they are still in high school. We are the only school that pays for kids to take college classes in high school. I am excited about the new program Get Focused, Stay Focused, because it is in line with getting kids motivated and ready for a career choice early in their education.

Sarah Graham

Credential: Single Subject in Visual Arts
College: Oregon State University
Degree/Major: Bachelor of Fine Arts
Classes taught: Art (both at Tioga and Tenaya)
Interests:  I discovered my love for teaching as a summer camp instructor, and that lead me to receive my teaching credential in art.  I’ve since taught as a student teacher at Summerville High School and currently teach art at both Tioga High and Tenaya Elementary.  My website is www.sarahannegraham.com, and I share my life with my husband Chris and our dog Hera.

Emily Hanchett

Credential: Single Subjects in English & History
College: University of California Los Angeles, University of California Santa Barbara, University of San Diego
Degree/Major: B.A. in Political Science, Master’s in Asian Studies
Classes taught: Economics, US History, World History, Academic Decathlon, English 9
Interests:  Family, animals, reading, writing, Asian studies. My two sons have been educated at Tioga, the oldest just graduated from CSU Humboldt in Forestry motivated in part by his experience taking Fire Science at Tioga and the youngest is a junior contemplating UC Davis. I’m proud of the education they each have received from our small but mighty high school.

Billy Hilton

Credential: Single Subject in Biological Sciences
College: CSU Stanislaus
Degree/Major: B.S. in Science
Classes taught: Earth Science, Biology, Chemistry, Drama
Interests: Coaching basketball and baseball at Tioga, conducting Science research, studying Sea Turtles in San Diego in summer, plays, concerts, and standup comedy. Spending enough time around Billy would make you believe his is a bit of a comedian himself

Julia Keiter

Credential: Single Subject Mathematics
College: CSU Stanislaus
Degree/Major: B.A. in Mathematics
Classes taught: Math 1, Math 2, Algebra II, Precalculus, and Calculus
Interests: Spending time with my husband and two kids, camping, four-wheeling, and traveling.

Lynda Martinez

Credential: Single Subject English, Spanish, Psychology, Learning Handicap, Resource Specialist, Lower Math
College: National University – San Jose, Cal State San Jose, Cabrillo College – Aptos
Degree/Major: AA in Mathematics; BS in Social Sciences w/emphasis in Professional Education; MS in Special Education; MA in Leadership and Administration
Classes taught:CP English 10, CP English 11/12, Resource English, Spanish 1, Spanish 2, Spanish 3, Spanish 4, AP Spanish, Psychology
(also previously taught at Don Pedro:  Drama and Leadership)
Interests: My family (2 daughters — Maricela and Rosalinda), Reading, Writing, Raising Alpacas

Jimmie L. McClure

Credential: Pupil Personnel Services, Single subject Biology and Physical Education
College: CSU Hayward (now CSU Eastbay)
Degree/Major:  B.S. Biology, B.S. Physical Education M.S. Educational Psychology
Interests: Sports, coaching, Wildlife Rehabilitation, Sports Medicine

Karen Seals

Credential: Single Subject in Health Science
College: Concordia University
Degree/Major: B.A. Youth Development
Classes taught: Online, Culinary, Life Skills
Interests: Moved to Groveland in 2012 after teaching at Oakland High School, was Director of Public Health Academy and Friday Night Live while at Oakland High, Pickleball (heads the PML Pickleball Club in Groveland), teaching at Tioga.