Kearns is a suburb of Sydney, in the state of New South Wales, Australia 57 kilometres south-west of the Sydney central business district, in the local government area of the City of Campbelltown and is part of the Macarthur region.

William and his new wife Elizabeth went on to bring up the little girl from the former relationship the child adored her father.

Kearns's land was originally owned by the Tharawal people until they were dispossessed by British settlers in the 1820s.

By purchasing neighbouring land grants, he expanded his property to 150 hectares (360 acres) and established a thriving dairy farm and orchard.

Streets were named after famous rivers of the world such as Mississippi, Danube and Yangtze and the first residents moved in in 1985.