In 1994, Smithson received two Emmy Award nominations in the category Outstanding Individual Achievement in Makeup for a Series for his work on Star Trek for The Next Generation episode "Genesis" , shared with Michael Westmore, June Westmore, Gilbert A. Mosko, Debbie Zoller, Tina Hoffman, David Quashnick, Hank Edds, Kevin Haney, and Michael Key and for the Deep Space Nine episode "Rules of Acquisition" , shared with Michael Westmore, Camille Calvet, Karen Westerfield, Dean Gates, Dean Jones, Tina Hoffman, David Quashnick, Hank Edds, Michael Key, and Gilbert A. Mosko.