Francis De Groot being apprehended by police, having stormed forward on horseback and slashed the ceremonial ribbon to prevent Premier Jack Lang from having the honour of opening the Sydney Harbour Bridge (1932).
Unrecorded, Francis De Groot apprehended (1932) (19th March 1932). University of Sydney Library, accessed 19/02/2025, https://digital.library.sydney.edu.au/nodes/view/13784