Jack Ignatius Dragna was a Sicilian-American Mafia member, entrepreneur and Black Hander who was active in both Italy and the United States in the 20th century. He was active in bootlegging in California during the Prohibition Era in the United States. In 1931, he succeeded Joseph Ardizzone as the boss of the Los Angeles crime family after Ardizzone's mysterious disappearance and death. Both James Ragen and Earl Warren dubbed Dragna the "Capone of Los Angeles". Dragna remained the boss of the Los Angeles crime family from 1931 until his death in 1956.

Joseph "Joe Iron Man" Ardizzone was an Italian-born early American mobster, who became the first Boss of the Los Angeles crime family. He was involved in a long-standing feud with the Matranga family. He once claimed to have killed 30 men.