Brief bios of the engineers, computer scientists, archaeologists, Andeanists, and other scholars who took part in "Engineering the Inka Empire: A Symposium on Sustainability and Ancient Technologies," presented at the National Museum in Washington, DC, November 4, 2013. The symposium described research and other work toward the exhibition "The Great Inka Road: Engineering an Empire," scheduled to be on view at the museum from June 26, 2015, to June 1, 2018.