Harry Stromberg (c. 1902 – November 22, 1953), known as Nig Rosen, was an American mobster who was a major organized crime figure on the East Coast with influence as far as Philadelphia, Atlantic City, Baltimore, and Washington, D.C. Stromberg was an emigrant from the Russian Empire.
[3] Succeeding Max "Boo Hoo" Hoff as the city's chief bootlegger during Prohibition, he was a member of the "Big Seven" aligned with the Philadelphia faction along with Waxey Gordon and Irving Blitz,[4] later attending the Atlantic City Conference.
[5] During the 1930s, he and Meyer Lansky worked on expanding drug trafficking operations in Mexico as an alternative to older routes such as Japan now closed with the United States' entry into World War II.
By 1939, a lucrative heroin network had been established from drug traffickers based in Mexico City to major cities across the United States including New York, Philadelphia, Miami, and Los Angeles, as well as Havana, Cuba.
[citation needed] He and his lieutenant, driver and bodyguard Willie Weisberg, were named as dominant racketeers involved in the numbers racket under testimony from police superintendent George F. Richardson during the Kefauver Committee in 1951.