Lester Joseph Gillis (December 6, 1908 – November 27, 1934), known by the pseudonym George Nelson, was an American bank robber in the 1930s. Gillis was better known as Baby Face Nelson, a name given to him due to his youthful appearance and small stature. Criminal associates instead called him "Jimmy", Nelson entered into a partnership with John Dillinger, helping him escape from prison during the famed Crown Point, Indiana Jail escape, and was later labeled along with the remaining gang members as public enemy number one.