Mr. William E. Thomas is the 2nd Head Principal of AUPP High School-Foxcroft Academy. Before coming to Cambodia, Mr. Thomas spent the past 16 years teaching Economics and History at Foxcroft Academy, and in 10 of those years, he served as its Social Studies Department Chair.​

Mr. Thomas’ academic background includes a Bachelor of Science in Business Administration and a Master of Arts in History, both acquired at The Citadel: The Military College of South Carolina. Mr. Thomas has taught all high school academic levels including Advance Placement and International Baccalaureate. He also attended all the workshops and seminars associated with those programs, including reading AP History exams (three consecutive years) for the College Board who is responsible for administering the Advanced Placement exams. Mr. Thomas’s vitae also include management positions in the private sector that includes banking, project management, estimating for commercial contractors, and even a little cattle ranching at his family’s farm.​