Question: Eileen Elizabeth Sheridan was known for her association with a firm headed by English gangsters who were the foremost perpetrators of what in the East End of London?

Documents:
source: Kray twins
text: Kray twins Twin brothers Ronald "Ronnie" Kray (24 October 193317 March 1995) and Reginald "Reggie" Kray (24 October 19331 October 2000) were English gangsters who were the foremost perpetrators of organised crime in the East End of London during the 1950s and 1960s. With their gang, the Firm, the Krays were involved in armed robberies, arson, protection rackets, assaults and the murders of Jack "the Hat" McVitie and George Cornell.

source: Eileen Sheridan (model)
text: Eileen Sheridan (model) Eileen Elizabeth Sheridan (born 1936) is a former British beauty pageant contestant who was also known for her association with the London underworld 'firm' headed by the Kray twins; notably attending the funeral of their elder brother, Charlie, in 2000. And also attended the funerals of Ron and Reg Kray.

source: Sheridan School District (Arkansas)
text: Sheridan School District (Arkansas) Sheridan School District is a public school district headquartered in Sheridan, Arkansas, United States. The district serves areas of Grant County, including Sheridan, and Saline County, including the unincorporated area of East End.

source: East End Film Festival
text: East End Film Festival The East End Film Festival is one of the UK’s biggest film festivals. In various venues across East London the festival annually "showcases hot new talent and homegrown films alongside larger independent releases and special events, informing and inspiring a new generation of filmmakers and audiences from across London and beyond, and raising the profile of this vibrant and diverse area - London’s East End." The festival also strives to actively search for “new voices from the edges of society, from different cultures, from strangers.” To this end, particular attention is paid to emergent British, Eastern European and Asian talent, and the festival screens features and hundreds of short films from up-and-coming filmmakers from around the world. The festival also places great emphasis on its MIND THE GAP sessions, which help "filmmakers in all stages of their careers cross the divide between an initial success and a sustainable career." New to the 2013 festival is a concerted focus on South American independent film. Also new to the 2013 festival is East End Live, a day-long mini music festival which will conclude this year’s festival. It will see over sixty acts perform in ten distinct locations across the East End.

source: Get Me a Lawyer
text: Get Me a Lawyer "Get Me a Lawyer" (also known as "Pilot") is the pilot episode of the legal drama series "Damages", which first aired on July 24, 2007 on FX in the United States. It was written by series creators/executive producers Todd A. Kessler, Glenn Kessler, and Daniel Zelman, and was directed by producer Allen Coulter. In the episode, recent law school graduate Ellen Parsons (Rose Byrne) is recruited to Hewes and Associates, a law firm headed by Patty Hewes (Glenn Close), where she is assigned to the "Frobisher case". Billionaire Arthur Frobisher (Ted Danson) is being sued by his former employees, whom he advised to invest in his company while unloading his own stock, and while Frobisher's attorney Ray Fiske (Željko Ivanek) pleads for a settlement price, Patty insists on taking the case to court.

source: Multicultural London English
text: Multicultural London English Multicultural London English (abbreviated MLE) is a sociolect of English that emerged in the late 20th century. It is spoken authentically by working-class, mainly young, people in London (although there is evidence to suggest that certain features are spreading further afield). According to research conducted at Lancaster University and Queen Mary University of London, "In much of the East End of London the Cockney dialect... will have disappeared within another generation... it will be gone [from the East End] within 30 years... It has been ‘transplanted’ to... [Essex and Hertfordshire New] towns."

source: Call the Midwife (book)
text: Call the Midwife (book) Call the Midwife, later called Call the Midwife: A True Story of the East End in the 1950s, is a memoir by Jennifer Worth, and the first in a trilogy of books describing her work as a district nurse and midwife in the East End of London during the 1950s. Worth wrote the book after retiring from a subsequent career as a musician, and it was originally published in July 2002. Reissued in 2007, it became a bestseller, as did the sequel "Shadows of the Workhouse" (2005, reissued 2008) and the final volume "Farewell to the East End" (2009). By the time of Jennifer Worth’s death in June 2011, her books had already sold almost a million copies. In 2012, the popular BBC adaptation of the trilogy boosted sales further, and all four of the author's books about the East End (the "Midwife trilogy" and "In the Midst of Life" (2010) went back into the charts.

source: Phil Pickett
text: Phil Pickett Philip Stuart "Phil" Pickett is a double Ivor Novello Award-winning English composer, musician, vocal arranger, producer and artist manager. Born on 19 November 1946 in Munster Germany (B.A.O.R.) the only child of father Philip George Pickett, an RAF pilot officer killed in a flying accident in Rhodesia in 1950 and mother Eileen Elizabeth Pickett who died in Spain in 1993.

source: Billy Hill (gangster)
text: Billy Hill (gangster) William "Billy" Charles Hill (13 December 1911 – 1 January 1984) was an English criminal, linked to smuggling, protection rackets, and extreme violence. He was one of the foremost perpetrators of organised crime in London from the 1920s through to the 1960s. He project managed cash robberies and, in a clever scam, defrauded London's High Society of millions at the card tables of John Aspinall's Clermont Club.

source: East End of London
text: East End of London The East End of London, also known simply as the East End, is an area of Central, East London and London Docklands, England; east of the Roman and medieval walls of the City of London, and north of the River Thames. The East End is the historic core of wider East London but is not defined by any universally accepted boundaries, though the various channels of the River Lea are often considered to be the eastern boundary.

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Answer: organised crime