Thomas Dent was born in approximately 1826 in Baston, Lincolnshire, in England. The early years of his life are unknown, but as he grew older, he worked as a farm labourer. His troubles with the law began in his early 20s. On 20 December 1848, he was convicted of trespass and poaching. On 3 August 1849, he was convicted of assault. For both crimes, he served time at the House of Correction in Folkingham.
On 30 December 1850, Thomas, along with James Webber and John Dent, stole two gallons of rum and other articles from John Cole’s house in Baston. He was convicted of housebreaking and stealing and, due to his previous convictions, was sentenced to seven years’ transportation.
Having already escaped from Coolgardie Gaol in January, police kept a close watch on George Thompson when they loaded him onto a train on 17 March 1897. He was to serve three sentences at Fremantle Prison; 12 months for stealing, four months for breaking out of gaol and three months for giving a false name to the police. Thompson was one of 14 prisoners being transported from Coolgardie to Fremantle on the midday train.
Excitement was caused in Northam when it was reported that a strange creature had been seen on two or three successive nights in the Avon River, near the Central Bridge.
On 14 January 1929, The West Australian broke the story of the strange creature in the Avon River. While some swore that what they had seen was a small alligator resting on a sandbank, others stated that it was a shark. Most people however felt that both speculations were incorrect and that it was most likely just a large lizard. Whatever it was, Police found the claims to be serious enough that, at 1am in the morning, they attempted a search and, during the day, a Constable patrolled the bridge with a rifle. With no success, a more thorough investigation was organised to take place on 15 January.
Hundreds of people lined the riverbanks and the bridges and watched the Police carry out their search, all to no avail. Despite descriptions (said to be five feet long) and the occasional sighting, the monster eluded capture.
By the 16 January, the monster was still at large.