The horseman who interrupted Sydney Harbour Bridge’s opening
At Sydney Harbour Bridge’s opening on 19 March 1932, Francis de Groot rode into the ceremony and cut the ribbon with a sword before Premier Jack Lang could perform the planned act.
A major public occasion
The opening of Sydney Harbour Bridge brought a vast crowd to a project that had taken nine years to construct. More than 1,600 people had worked on the bridge, making it a major source of employment during difficult economic times. On 19 March 1932, Premier Jack Lang was due to perform the ceremonial opening. The newly completed structure represented a substantial engineering achievement, and the public ritual was intended to give that achievement a clear and memorable beginning.
A borrowed horse and a sword
Francis de Groot entered the proceedings on a borrowed horse and slashed the ceremonial ribbon with his sword before Lang’s planned act. The National Portrait Gallery identifies the horse as Mick, borrowed through New Guard leader Eric Campbell. Its owner believed de Groot would take part in the official ceremony. The episode therefore depended on access, costume and an animal supplied under a different understanding of what its rider intended to do at the bridge. National Portrait Gallery: Captain Francis de Groot.
A political interruption
De Groot belonged to the New Guard, a right-wing monarchist and anti-communist organisation hostile to Lang. The intervention was a calculated political protest, not simply a spontaneous joke at a public celebration. Police removed him, and the ribbon was retied so the premier could carry out the ceremony. The National Film and Sound Archive preserves an account of the ensuing legal dispute, while the National Museum of Australia records his arrest and a five-pound fine. National Film and Sound Archive: de Groot’s sword.
Remembering the scene carefully
The sword and horseman became enduring elements of the opening’s popular memory. Images require care, however: the National Portrait Gallery explains that Harold Cazneaux’s portrait of de Groot on Mick was posed after the event and backdated to refer to it. A dramatic historical image need not be an eyewitness photograph. The accompanying illustration is another interpretation, showing the interruption without claiming exact positions or expressions. The bridge’s completion remains a larger story than the moment that briefly disrupted its opening.
Flash Jack from Gundagai
The Verandah Band Brisbane
A later artist-uploaded performance of an Australian bush song provides Australian cultural context. It is not a recording from the bridge opening and has no claimed connection to de Groot’s politics.
Listen on SoundCloud ↗Follow the evidence.
- National Portrait Gallery: Captain Francis de Groot ↗
- National Museum of Australia: de Groot cuts the ribbon ↗
- National Film and Sound Archive: de Groot’s sword ↗
AI-assisted writing, with institutional and primary sources. Illustration is a reconstruction, not an archival photograph. Published October 31, 2026; updated October 31, 2026. Our approach
