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Missing personsCold case

Beaumont children disappearance

Three siblings disappeared during a trip to Glenelg Beach.

Place
Adelaide, South Australia, Australia
Date
26 Jan 1966
Status
Cold caseThe case is unresolved but is not under continuous active investigation. It may reopen if new evidence appears.
Sources
2 cited sources

Reviewed by Global Case Archive editorial desk

Last reviewed 09 Aug 2026 · What reviewed means →

Overview

What is documented

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]

Essential facts

Who
Jane Beaumont, 9; Arnna Beaumont, 7; and Grant Beaumont, 4.
What
The unexplained disappearance of three siblings during a daytime beach visit.
Where
Glenelg Beach and surrounding area, Adelaide, South Australia.
When
Australia Day, 26 January 1966.
How
The children travelled by bus and were seen at the beach and nearby shops. They did not return home on the expected bus.

Record history

Source reviewThe current summary, status, and citations were reviewed by the editorial desk.

No material corrections have been recorded for this version.
Selected viewing

Case videos

2 editor-selected videos

These videos were selected for clarity, sourcing, and relevance. Inclusion does not mean the archive endorses every claim they contain.

The Disappearance of the Beaumont Children

Unsolved Mysteries

Selected as an accessible overview of the disappearance and its impact in Australia.

The Beaumont Children

Southern Mysteries

A recent, respectfully framed documentary-style breakdown of the public record.

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Beaumont children disappearance — Global Case Archive