William Cammisano
American mobster
About William Cammisano
Lived 1914 – 1995 (aged 80). William Cammisano was an American mobster.
William "Willie the Rat" Dominick Cammisano Sr. (April 26, 1914 – January 26, 1995) was an American mobster and enforcer for Nicholas Civella's Kansas City crime family.
Biography Cammisano began his criminal activity in his youth and had an extensive rap sheet by the age of 15 in 1929. Convicted of a felony in federal court, he served a sentence at Federal Correctional Institution, El Reno which became the namesake of a tavern he operated, the El Reno Bar, in the 1940s.
Both William Cammisano and his brother, Joseph, were indicted for "conspiracy to extort the property of Fred Bonadonna" on June 16, 1978. The case was later summarized in a report to the United States Senate in 1988. In 1980 Cammisano was ordered to appear before a U.S. Senate Subcommittee investigating organized crime activity in Kansas City.
With Civella's conviction in 1983, Cammisano became the new leader of the Kansas City organization. In January 1988 Civella was released from prison and resumed his leadership of the Kansas City organization. It is believed Willie Jr owned a share of the Argent Casino in Las Vegas and met with Chicago mafia members to discuss retrieving his portion of the sale price and skim monies from that casino.
William's other son Gerlarmo "Jerry" Cammisano pleaded guilty in 2011 to federal charges he ran a $3.5 million illegal sports betting ring. Jerry was sentenced to 14 months in prison and ordered to forfeit $201,137, according to records. Jerry's son, Vito Cammisano is a swimmer that attended the University of Missouri. Vito became well known when he was filmed kissing his boyfriend Michael Sam right after it was announced that Sam would be the first openly gay NFL football player to be drafted, when the St. Louis Rams picked him in the seventh round of the 2014 draft.
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Important facts
People in William Cammisano's life
Named in this biography and alive at the same time
Contemporaries
People whose lives overlapped William Cammisano's
Frequently asked questions
Who was William Cammisano?
American mobster
When was William Cammisano born?
William Cammisano was born on 26 April 1914.
When did William Cammisano die?
William Cammisano died on 26 January 1995.
What was William Cammisano's occupation?
William Cammisano was a mobster.
What nationality was William Cammisano?
William Cammisano was American.
Sources & further reading
· Wikipedia: William Cammisano
Cite this page
APA: Biography.guide. (2026). William Cammisano. https://biography.guide/william-cammisano/
MLA: "William Cammisano." Biography.guide, https://biography.guide/william-cammisano/.
Chicago: "William Cammisano." Biography.guide. https://biography.guide/william-cammisano/.
Data last updated: 2026-09-20 · Spot an error? Report a correction.
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