Smithson was an assistant to Dr. Bruce Tinner during the test run of the virtual reality machine.
Smithson helped the testing team hook themselves up to the machine, and was later present to help get them back out once Dr. Rudyard Shelton got them out. (Schrödinger's Prisoners)
Later, at New Peenemunde Harbor, Smithson was assigned to Drs. Rudyard Shelton and Yuri Kerzach to help with their assignment to rebuild the virtual reality machine with Drake. (Disruptive Selection)