Harry Henry Hartz was an American racing driver and auto mechanic.
Hartz, circa 1924
The Crowd Roars (1932 film)
The Crowd Roars is a 1932 American pre-Code film directed by Howard Hawks starring James Cagney and featuring Joan Blondell, Ann Dvorak, Eric Linden, Guy Kibbee, and Frank McHugh. A film of the same name was made in 1938 with a different story, starring Robert Taylor.
James Cagney, Ann Dvorak and Joan Blondell