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

Context: In 1839, Russell designed St James Old Cathedral, the oldest building in Melbourne and one of the very few pre-Gold Rush buildings in the city.
Russell later practised as an architect in Melbourne until he was forced to retire by old age. He kept his mind to the last and died at Richmond, Melbourne, on 10 April 1900, aged 92. He married and was survived by two sons and two daughters.
In addition to being an architect and surveyor Russell did 'extensive work as a sketcher, amateur photographer, etcher, lithographer carver'. He did valuable work as an amateur artist by preserving many original sketches of Melbourne in its early years, in both water-colour and pencil and in 1952 an exhibition of his 'lost paintings' was held at the Tye gallery in Melbourne Russell's artwork is in the collections of the State Library of Victoria, National Gallery of Victoria, the National Library of Australia and the State Library of New South Wales. There is a portrait of him in old age painted c1890 by Frederick McCubbin in the collection of the National Library of Australia.
In 1969, the Victorian chapter of the Australian Institute of Architects named their St. Kilda Road property 'Robert Russell House' in recognition of his work.

Answer: 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.