On the night of 28 March 1791, Martin, along with William Bryant, his wife Mary (née Broad) and their two children Charlotte and Emanuel, William Allen, Samuel Bird, Samuel Broom, James Cox, Nathaniel Lillie, and William Morton, stole the colony's six-oared open boat. In this vessel, the party navigated the eastern and northern coasts of Australia, survived several ferocious storms, encountered Aboriginal Australians and Torres Strait Islanders, and reached Kupang in Dutch West Timor on 5 June 1791, the entire party having survived. There, they successfully – for a while, at least – passed themselves off as the survivors of a shipwreck. Once their true identities were discovered, the escapees were imprisoned and returned to England. During this journey, William Bryant, Emanuel Bryant, James Cox, Samuel Bird, and William Morton died. The survivors arrived back in England on 18 June 1792. On 7 July they were brought to the bar at the Old Bailey, and ordered to remain in Newgate gaol until their original sentences of transportation had expired. Mary Bryant received an unconditional pardon on 2 May 1793 when her sentence expired, while Martin, Allen, Broom, and Lillie were released by proclamation on 2 November 1793. From there, they largely disappear from the historical record. The "Memorandoms" is part of the Bentham Papers archive in University College London Library's Special Collections. It was first discovered by the Bentham scholar Charles Blount, who in 1937 published a short edition, limited to 150 copies. In 2017, an open-access book, containing reproductions of the original manuscript and a detailed introduction, edited by Tim Causer, was published by UCL Press.