William Lawson, MLC was a British soldier, explorer, land owner, grazier and politician who migrated to Sydney, New South Wales in 1800. Along with Gregory Blaxland and William Wentworth, he pioneered the first successful crossing of the Blue Mountains by British colonists.

Gregory Blaxland was an English pioneer farmer and explorer in Australia, noted especially for initiating and co-leading the first successful crossing of the Blue Mountains by European settlers.