William and Sarah did not marry on Norfolk Island this I feel is proved by the fact that while the family were on Norfolk Sarah in all Muster's and Victulating lists is recorded as Mary Leadbeater and John Hugh and William as Leadbeater also. The marriage of record on William and Sarah took place during the time that Governor Macquarie found distaste in couples having families though not married. William and Sarah were married at St. Johns Church, Parramatta on 23rd March 1812 by special licence. Sarah Leadbeater arrived in the colony on board the "Earl Cornwallis" 10th June 1801 on board the ship were a family by the name Brown a David Snr and Jnr who were free and three other sons John, Thomas and William all convicts. On her arrival Sarah was assigned to a Mr Brown of Parramatta so it seems in all likelihood that when John Brown (convict) from Sarah's ship was sent to Norfolk that his father David accompanied him as Musters record a David Brown Snr on Norfolk. And the families seemed in later years to be on friendly terms as the Lawson boys write of visiting Mr David Brown at Parramatta.