Walton at at glance
Age: 31
Job: Executive director of Green|Spaces
Education: A native of Greeneville, Tennessee, he earned a degree in architecture from the University of Tennessee in Knoxville and spent a semester studying at the Swiss Federal Institute of Technology in Zurich, Switzerland.
Career: He was architect in Washington D.C. for Envision Design, which was bought in 2012 by Perkins+Will. He became head of Green|Spaces in March 2014.