Three siblings disappeared during a trip to Glenelg Beach.
Updated 09 Aug 2026
Jane, Arnna, and Grant Beaumont travelled by bus from their Adelaide home to Glenelg Beach on 26 January 1966. Witnesses reported seeing the siblings at the beach and nearby shops, but they did not return home on the expected bus. [1]
Their disappearance prompted a major police investigation and repeated searches across South Australia. No confirmed trace of the children has been found, and later witness accounts and proposed suspects remain unproven. [2]
4 sourced milestones
Major events in the case, shown in chronological order.
Jane, Arnna, and Grant Beaumont took a bus from their Adelaide neighbourhood to Glenelg Beach for an Australia Day outing.
Source: Wikipedia ↗Witnesses reported seeing the siblings near the beach and local shops, but they did not return home on the bus their parents expected.
Source: Wikipedia ↗South Australia Police excavated part of a former factory site after a new assessment of earlier information, but the search did not locate human remains or evidence connected to the children.
Source: ABC News ↗Repeated searches and reviews have not established what happened to the siblings, and South Australia Police continue to list the case publicly.
Source: South Australia Police ↗2 videos
An accessible overview of the disappearance and its impact in Australia.
A recent, respectfully framed documentary-style breakdown of the public record.
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