JANUARY 26, 1966
The Beaumont children got on a bus near their home at about 8.45am
They travelled together to Glenelg Beach, to swim at an area between Jetty Road and the Anzac Highway
The trio were due home about 2pm, but failed to return
At about 7.20pm, their father reported his children missing
An extensive search of the area was conducted by police that night, but the children were not found
NOVEMBER 8, 1966
World-renowned Dutch clairvoyant Gerard Croiset is flown to Adelaide by local real estate developer Con Polites
He declared to crowds gathered on the beach that the Beaumont children had not been kidnapped, and were rather trapped beneath freshly laid concrete
Mr Croiset indicated the children were at a building site in North Plympton
The public raised $40,000 to demolish the building in their search for the children
About 30 years later, when the site was being partially demolished, the owners reportedly allowed for a full excavation, but nothing was found
MAY 20, 2013
The Satin Man by Alan Whiticker is released
The book investigates one theory about the Beaumont Case, which alleges a prominent businessman was behind the murder of the children
In the book, the businessman’s estranged son says he saw the Beaumont children in his father’s backyard – just metres from Glenelg Beach
The man was identified as Harry Phipps in a segment on the book aired on Today Tonight
As a result of the report, two men came forward to police and said they had been asked to dig a trench on the grounds of Mr Phipps’ factory in North Plympton
AUGUST 2013
Police announce allegations made against Harry Phipps have been discounted, and he is not a suspect in the investigation into the missing Beaumont children
NOVEMBER 2013
Police dig up a small area of the land surrounding the factory
The dig does not uncover any new information relating to the disappearance
Officers are criticised for not inviting the two men along to the dig, and some claim they dug in the wrong spot
JANUARY 2017
Tests on the soil at Mr Phipps’ former factory reveal an area of soil measuring about one metre wide, two metres long and two metres deep has been disturbed
Following new information from witnesses and the soil tests, police declare a section of land at the rear of the factory a crime scene