These boys began grew up in a den of thieves, murderers, grafters, men of poor moral character. They were reared with neither education nor ant real religious teaching, although it has been related that they were Catholic, probably in name only. Their father, John Clarke was a dyed in the wool criminal that would died in Goulburn Gaol while he was waiting to be tried for the murder of Billy Noonang, an Aboriginal. Their mother, May Connell had three brothers, two of which were likely murders and positively horse thieves and robbers; the third was just a plain cattle rustler and horse thief. So, as you can see, Thomas and Jon Clarke came their murderous ways, honestly. . .
Thomas on left, John on right:
From "Australian Dictionary of Biography" by Nan Phillips
" Thomas and John junior began work as stockmen on unfenced stations and connived with their employers in the widespread cattle-stealing which continued until curtailed by the Registration of Brands Act in 1866. John was released in 1864 after a year in gaol for horse-stealing and in January 1865 their brother James was sentenced to seven years on Cockatoo Island for receiving the proceeds of a mail robbery. In that year Thomas, who was said to have been in Queensland in 1864, was detained in Braidwood gaol while waiting trial for assault and robbery; in October his family arranged his escape. At the inquiry a Goulburn magistrate criticized the lack of staff and security at the gaol, claiming that it was 'of more importance than many other prisons … is in the neighbourhood of Araluen … also of Jingera and other places notorious for cattle-stealing, the former place being the locality of the Clarke family'.
Thomas was joined by several relations and between October 1865 and May 1866 was credited with three charges of horse-stealing, eight robberies including two mails and post offices, the wounding of John Emmett and the murder of Constable Miles O'Grady at Nerrigundah on 9 April. By proclamations issued on 15 May and 5 June Thomas Clarke and Thomas Connell were declared outlaws under the Felons Apprehension Act. In May Thomas Clarke was joined by his brother John and 'no more remarkable confederacy of robbery, violence and murder has ever been known to exist in any civilized community'. Failure to catch Clarke's gang led to public outcry and the colonial secretary, Henry Parkes, sent 'special' police to the Braidwood district in April 1866. They were unsuccessful and soon recalled. In September Parkes secretly appointed John Carroll, a senior warder at Darlinghurst gaol, and three others to capture the Clarkes. Carroll resorted to bribery and arrested Clarke's two sisters, other relations and friends on charges of harbouring, but received little support from the local authorities. In January 1867 Carroll and his party were murdered near Jinden station. The crime was credited to the Clarkes and a Gazette Extraordinary called on officials and settlers to help in catching the gang and offered a reward of £5000 for their capture or £1000 each, with lesser amounts for information. An uncle, Michael Connell, and James Griffen were arrested and charged with the murder, but their release on bail by local magistrates led to an official inquiry in March. Its scathing findings on conniving officials and landowners and the 'complete absence of moral training, education and religious instruction' touched off a newspaper controversy on the culpability of the squatters, the Irish and the small-holders. John Dunmore Lang, a passenger on a mail coach held up near Goulburn on 22 February by Thomas Clarke and his partners, was not molested and his later claim to understand the attraction of such a life to young men added fuel to the arguments by moralists but did not help to catch the bushrangers."
In memory of Constable Miles O'Grady, a constable slain by the Clarke Brothers: