Beaumont children disappearance investigation

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SUMMARY

New testimony from 'Louise' in a book released in mid-2025 alleges that Harry Phipps was responsible for the 1966 kidnapping and murder of Jane, Arnna, and Grant Beaumont, who vanished from Glenelg Beach, Adelaide. As of May 20, 2026: Remains discovered in May 2026 were identified as Jeff Mundy, a development in an Adelaide cold case occasionally linked to the Beaumont disappearance, while a sinkhole in Stansbury is being considered as a possible burial site for the children. A third excavation was conducted in February 2025 at the former Castalloy foundry, prompted by new testimony implicating Phipps, and a bone fragment found in May 2025 at Phipps' former home has been identified with over 90% certainty as human. Investigator Bryan Littlely claims proof linking convicted sex offender Bill Cotton to another suspect, Stan Hart, and a previously unknown familial link between Phipps and the Beaumont family has been revealed.

Timeline

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Timeline of developments

May 2026 1 developments

  1. Remains Identified as Jeff Mundy in Adelaide Cold Case Linked to Beaumont Children Investigation

    Remains discovered in May 2026 have been identified as Jeff Mundy, a development in an Adelaide cold case occasionally mentioned alongside the Beaumont children's disappearance. The Beaumont children vanished from Glenelg Beach in 1966, and recent efforts to find new evidence have focused on the former Castalloy foundry site.

April 2026 2 developments

  1. New book alleges Harry Phipps confessed to Beaumont children's murder

    A book released in mid-2025 presents testimony from 'Louise' alleging that Harry Phipps was responsible for the 1966 kidnapping and murder of the Beaumont children. Louise claims Phipps, identified as a pedophile, also abused her and involved her in a pedophile ring, suggesting he may have moved the children's bodies. A sinkhole in Stansbury is also being considered as a possible burial site.

  2. New book suggests Harry Phipps moved Beaumont children's bodies from factory site

    A new book released in August 2025 presents testimony suggesting the Beaumont children's bodies may have been moved from the former Castalloy factory site, implicating Harry Phipps. Investigators believe this new testimony could be a game-changer in the cold case.

March 2026 1 developments

  1. Third excavation at former Castalloy foundry in Beaumont children's disappearance investigation

    A third excavation was conducted at the former Castalloy foundry in February 2025 as part of the Beaumont children's disappearance investigation. This renewed search was prompted by new testimony suggesting suspect Harry Phipps, who had a history of pedophilia, may be responsible for the children's deaths and disposal at his factory.

February 2026 1 developments

  1. Woman's Testimony Alleges Kidnapping, Murder in Beaumont Children Disappearance

    New revelations in the Beaumont children's disappearance case suggest it may be closer to being solved. Startling testimony from a woman identified as 'Louise' details the alleged kidnapping and murder of Jane, Arnna, and Grant Beaumont, who vanished from Adelaide.

January 2026 6 developments

  1. Anatomy Professor Identifies Human Bone Fragment at Harry Phipps' Former Home

    An anatomy professor has stated with over 90% certainty that a bone fragment found in May 2025 at the former home of deceased suspect Harry Phipps is human. Additionally, a final excavation revealed a previously unknown familial link between suspect Harry Phipps and the Beaumont family, as Phipps' niece was married to a cousin of the children's father.

  2. Investigator Bryan contacted by woman claiming to see Beaumont children on day they vanished

    An investigator named Bryan was contacted by a woman who claims she saw the Beaumont children on the day they went missing, introducing a new witness claim in the ongoing investigation.

September 2025 1 developments

  1. Stansbury sinkhole identified as second site in Beaumont children disappearance investigation

    A sinkhole in Stansbury on South Australia's Yorke Peninsula has been identified as a second site of interest in the ongoing investigation into the Beaumont children's disappearance.

August 2025 2 developments

  1. New dig begins at former Harry Phipps factory site in Adelaide for Beaumont children case

    A new, privately funded dig has commenced at a former factory site in Adelaide, once owned by prime suspect Harry Phipps, in an effort to solve the 1966 disappearance of the Beaumont children. Organizers expect new evidence to emerge from the excavation. Additionally, a witness named 'Louise' has provided testimony detailing the kidnapping and murder of the children.

  2. Book and 'Louise' claim Harry Phipps responsible for Beaumont children's disappearance

    New revelations from a book and a woman identified as 'Louise' claim that long-standing suspect Harry Phipps was responsible for the kidnapping and murder of the Beaumont children. Authors are also preparing to release information identifying a chief suspect and a crucial eyewitness.

March 2025 1 developments

  1. Private search for Beaumont children at old factory site concludes without new evidence, new theory developed

    A week-long private search for the missing Beaumont children at the old Castalloy factory site concluded without finding new evidence. However, the search team developed a new theory based on their investigation.

February 2025 10 developments

  1. New search for Beaumont children begins at former Adelaide factory site

    A new search for the Beaumont children has commenced at a former factory site in Adelaide, South Australia, focusing on previously excavated areas and a new, unsearched location. Organizers believe owner Harry Phipps may have kidnapped, murdered, and buried the children at the Castalloy foundry site. A newly revealed family connection between Phipps and the Beaumonts has also been disclosed.

  2. Excavators search former Harry Phipps property for Beaumont children clues

    Excavators are carefully removing topsoil at an old industrial site, searching for clues about the fate of the Beaumont children, who disappeared in 1966. The dig is at a site previously owned by Harry Phipps, a person of interest in the case.

  3. New evidence links Harry Phipps to Beaumont children; investigators receive new information

    New evidence suggests a claimed family link by marriage between key suspect Harry Phipps and the missing Beaumont children. Additionally, private investigators leading the current dig are receiving a large volume of calls and emails with new information, alongside over 50 calls to Crime Stoppers.

  4. MP Frank Pangallo organizes third Castalloy factory excavation; no remains found

    A third, privately funded excavation begins at the former Castalloy factory site, organized by South Australian MP Frank Pangallo, based on new evidence. The week-long search, which involves turning over 10,000 tons of soil, concludes without finding any remains.

  5. Private Team Begins Excavation for Children's Remains at Former Foundry Site Near Adelaide

    A private team initiated an excavation at a former metal foundry site near Adelaide in February 2025 in search of the children's remains, though South Australia Police stated they do not believe the theory supporting this specific dig is backed by evidence.

August 2024 1 developments

  1. New witness alleges businessman Harry Phipps sexually abused and murdered Beaumont children

    A new witness, identified as 'Louise', has provided testimony alleging that businessman Harry Phipps sexually abused and murdered the Beaumont children. According to her account in a new book, Phipps confessed to strangling Jane and Arnna and dumping them on his factory site, while Grant was murdered and buried elsewhere. This testimony is a significant development in the decades-old case.

April 2023 1 developments

September 2019 1 developments

January 2018 1 developments

February 1966 1 developments

January 1966 2 developments

  1. Witnesses report Beaumont children seen with tall man, buying food at Glenelg Beach

    Multiple witnesses report seeing the Beaumont children on and near Glenelg Beach with a tall, fair-haired man in his mid-thirties. They were also seen buying pies, pasties, buns, and fizzy drinks with a one-pound note, despite only having been given sixpence for bus fare.