Mickey Duffy
American mobster
About Mickey Duffy
Lived 1888 – 1931 (aged 42–43). Mickey Duffy was an American.
Michael "Mickey" Duffy (born William Michael Cusick; 1888 - August 30, 1931) -- also known as John Murphy and George McEwen -- was a Polish-American mobster and rival of Maxie "Boo Boo" Hoff during Prohibition. He became one of the most famous and powerful beer bootleggers in Philadelphia and Atlantic City.
Career Born William Michael Cusick to Polish immigrants in Grays Ferry, Philadelphia, Pennsylvania, an agent of the Bureau of Prohibition killed during a September 19, 1930 raid on one of Duffy's breweries in Elizabeth, New Jersey, local authorities began cracking down on Duffy's criminal operations causing some animosity among his partners including his bodyguard and chauffeur Joseph Beatty.
Within several months, two individuals alleged to have been involved, Samuel E. Grossman and Albert Skale, were gunned down at a club on Watts Street and Girard Avenue in December 1931 beginning a wave of violence among various factions among the Philadelphia underworld. Duffy's funeral was an event. Thousands of people flocked to the cemetery but a police line kept them outside the entrance gate. Friends and family of Duffy required a special pass to enter.
In popular culture In the HBO TV series Boardwalk Empire, a fictional character Mickey Doyle is based on Mickey Duffy, played by Paul Sparks.
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Important facts
People in Mickey Duffy's life
Named in this biography and alive at the same time
Contemporaries
People whose lives overlapped Mickey Duffy's
Frequently asked questions
Who was Mickey Duffy?
American mobster
When was Mickey Duffy born?
Mickey Duffy was born in 1888 in Grays Ferry.
When did Mickey Duffy die?
Mickey Duffy died on 30 August 1931 in Atlantic City.
What nationality was Mickey Duffy?
Mickey Duffy was American.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). Mickey Duffy. https://biography.guide/mickey-duffy/
MLA: "Mickey Duffy." Biography.guide, https://biography.guide/mickey-duffy/.
Chicago: "Mickey Duffy." Biography.guide. https://biography.guide/mickey-duffy/.
Data last updated: 2026-09-20 · Spot an error? Report a correction.
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