Given this paragraph about Robert Russell, what is he known for?

Rober Russell was an architect, surveyor and amateur artist who designed the oldest building in Melbourne, Australia, i.e., St James Old Cathedral in 1839. His art work including numerous sketches of Melbourne in the 1800s is on display in various galleries and museums in Victoria and New South Wales, Australia, such as the  State Library of Victoria, National Gallery of Victoria, the National Library of Australia and the State Library of New South Wales.