>Home >About Us >Our Staff Share Email Print Facebook Twitter Mark McDonald Position: Principal / Teacher, Grades 6-8 Email: mcdonald@stonehill.school Donelle Brown Position: Teacher, Grades 3-5 Email: brown@stonehill.school Weslie Onsando Position: Teacher, Grades K-2 Email: onsando@stonehill.school Lee Laswell Position: Volunteer, Treasurer Email: treasurer@stonehill.school David Onsongo Position: Volunteer, School Board Chair Email: chair@stonehill.school