the gallows by four prison warders. In Pentonville Prison, the 20-year-old Frederick Bywaters, who had tried since his arrest to save Thompson from imprisonment and execution, was himself hanged. The ordeal of executing Edith Thompson had a profound effect on her hangman John Ellis. The two executions occurred simultaneously at 9:00 am, only about apart, as Holloway and Pentonville prisons are located in the same district. Later, as was the rule, the bodies of Edith Thompson and Frederick Bywaters were buried within the walls of the prisons in which they had been executed. Burial The body of Edith Thompson was buried in an unmarked grave within the walls of Holloway Prison, as was customary. In 1971 the prison underwent an extensive programme of rebuilding, during which the bodies of all the executed women were exhumed for reburial outside the confines of the prison. With the exception of Ruth Ellis, the remains of the four women executed at Holloway (Edith Thompson, Styllou Christofi, Amelia Sach and Annie Walters) were reburied in a single grave at Brookwood Cemetery in Surrey. The new grave (in plot 117) remained unmarked for over twenty years. It was acquired in the 1980s by René Weis and Audrey Russell, who had interviewed Avis Graydon (Edith Thompson's surviving sister) at length in the 1970s. On 13 November 1993, a grey granite memorial was placed on plot 117, and dedicated to the memory of the four women buried there. The grave and plot were formally consecrated by the Reverend Barry Arscott of St. Barnabas, Manor Park, the church in which Edith Thompson was married in January 1916. Edith Thompson's details appear prominently on the face of the tombstone, together with her epitaph: "Sleep on beloved. Her death was a legal formality". The names of the other three women are inscribed around the edges of the tombstone. The precise location of Thompson's former grave within Brookwood Cemetery is . Representatives of the Home Office did not inform Avis Graydon of the exhumation and the fact that she had the right to take control of her sister's funeral arrangements. The remains of Frederick Bywaters still lie in an unmarked grave within the walls of HMP Pentonville, where they were buried shortly after his execution in January 1923. The precise location of the cemetery within the prison is . The remains of Percy Thompson are buried at the City of London Cemetery.