Samuel Langhorne Clemens first used this pen name in 1863 while with the Territorial Enterprise in Virginia City, Nev.
It was in 
Virginia City that Sam Clemens first used the penname Mark Twain, signing it 
on a... [DOC] [TLE] 1000+ images about Mark Twain Museum-Virginia City, NV on ... [PAR] Please keep in mind our pictures can not be used for profit.