For the past 30 years, Dennis has worked at top U.S. schools, most recently as head of school at Kingswood Oxford. Dennis served on the board of the National Association of Independent Schools and previously held positions at Bryn Mawr College, Shady Hill School, Collegiate, and Vejlefjord Højere Skole. Born in Germany, Dennis has also lived, studied, and worked in Denmark and Canada. He holds a candidatus magisterii degree from Odense University and a master’s degree from Columbia University. He speaks English, Danish, and German, and has studied French and Latin.