William Lawson (explorer)
Early life and migration to Australia
Lawson was born in Finchley, Middlesex, England son of Scottish parents who had lived at Kirkpatrick. He trained as a surveyor in London but later bought a commission in the New South Wales Corps and migrated to Sydney, arriving in November 1800. Shortly after his arrival he was posted to work at the military station at Norfolk Island. It was here that he met Sarah Leadbeater with whom he married and eventually had eleven children. By 1813, when Lawson received the invitation of Gregory Blaxland to cross the Blue Mountains, he had become an established colonial officer and pastoralist in New South Wales with lands in Concord and Prospect.
Crossing the Blue Mountains
Lawson commenced his exploration of the Blue Mountains alongside Blaxland and William Charles Wentworth on 11 May 1813. He kept a journal of the expedition titled, 'W Lawsons Narrative. Accross Blue Mountains [sic]'.  In his first entry he writes:
Mr. Blaxland Wentworth and myself with four men and four Horses- Laden with Provisions etc- took our Departure on Tuesday the 11th May 1813. Crossed the Nepean River at Mr. Chapman's Farm Emma Island at four oclock and proceeded SW. Two miles. Encamped at 5 oclock at the foot of the first [Nioji] of Hills-.
On 31st May 1813, the party reached the most westerly point of their expedition, now known as Mt Blaxland.  On this day, Lawson writes:
...this Country will I have no doubt be a great acquisition to this Colony and no difficulty in making a good Road to it, and take it in a Political point of View if in case of our Invasion it will be a safe Retreat for the Inhabitance with their Familys and that for this part of the Country is so formed by Nature that a few men would be able to defend the passes against a large body.
After the crossing, Lawson like Blaxland and Wentworth, was rewarded with a grant of 1,000 acres (4 km²) of land by Governor Macquarie. He selected this land to be along the Campbells River, part of the Bathurst settlement for which he was appointed Commandant until his retirement in 1824. Whilst Commandamant he continued to make expeditions, and in 1821 with Constable Blackman discovered the Cudgegong River and further explored Mudgee and its outlying regions. 
Once Lawson had retired from the army he entered politics and became a member of the New South Wales Legislative Council from 1843 to 1848. He died at his estate Veteran Hall in Prospect on 16 June 1850. The town of Lawson in the Blue Mountains is named for him.
Following Lawson's death Veteran Hall was eventually acquired by the Metropolitan Water Board and most of the granted property is now submerged by the waters of Prospect reservoir. The house was demolished in 1926.
- Dunlop, E. W. "Lawson, William (1774–1850)". Australian Dictionary of Biography. Retrieved 11 April 2013.
- Jensen, Jo; Peta Barrett (1997). Blaxland, Lawson & Wentworth. Slacks Creek, Qld: Future Horizon Publishing. ISBN 0958762295.
- Lawson's journal. The State Library of New South Wales
- "Lawson's journal". Discover Collections. State Library of NSW. Retrieved 11 April 2013.
- Percival Serle. "Lawson, William (1774–1850)". Dictionary of Australian Biography. Angus and Robertson (1949). Retrieved 2007-07-15.
- Australian 5d postage stamp showing Blaxland, Lawson and Wentworth's mountain crossing. australianstamp.com
Additional resources listed by the Australian Dictionary of Biography
- Historical Records of New South Wales, vols 4–7
- Historical Records of Australia, series 1, vols 3–8, 10, 11, 13, 14, 16
- H. Selkirk, ‘Discovery of Mudgee’, Journal of the Royal Australian Historical Society, 8 (1922)
- C. H. Bertie, ‘The Lawsons’, Home (Sydney), 1 January 1932
- E. C. Lawson, Lawson of Veteran Hall (microfilm, State Library of New South Wales)
- Farmer and Settler, 10 December 1954
- W. Lawson journals, 1813, 1821–22 (State Library of New South Wales)
- Bonwick transcripts, biography, vol 3 (State Library of New South Wales).