Disappearance of the Beaumont children Jane Beaumont, Arnna Kathleen Beaumont and Grant Ellis Beaumont, collectively known as the Beaumont children, were three Australian siblings who disappeared from Glenelg Beach near Adelaide, South Australia on 26 January 1966 in a suspected abduction and murder. At the time of their disappearance they were aged nine, seven, and four years respectively. Police investigations revealed that, on the day of their disappearance, several witnesses had seen the children on and near Glenelg Beach in the company of a tall blond and thin-faced man with a sun-tanned complexion of thin to athletic build, aged in his mid-30s. Confirmed sightings of the three children occurred at the Colley Reserve and at Wenzels Cake shop on Moseley Street, Glenelg. Despite numerous searches, neither the children nor their suspected companion were located. The case attracted widespread police and media attention in Australia and across the globe, quickly attracting numerous suspects, hoaxes and theories.