Who has more scope of profession, Grover Jones or Jeff Tremaine? 
Jeff Tremaine: Jeffery James Tremaine (born September 4, 1966) is an American film director, film producer, television director, and television producer. Grover Jones: Grover Jones (November 15, 1893 – September 24, 1940) was an American screenwriter - often teamed with William Slavens McNutt - and film director.
Jeffery James Tremaine