Using an iPhone, Sherrill found his grandparents' names listed in the 1930 census. He saw the original page of the census document in magnified form on his screen.
You can search for your ancestors using the mobile app available through TEL. Visit http://tntel.tnsos.org/ to see this and many other resources available online and free to Tennessee residents.
The State Library and Archives is a division of the Tennessee Department of State and Tre Hargett, Secretary of State.