Robert Brown, junior was an architect active in Scotland in the 19th century. He was born around 1804 to the Edinburgh architect, Robert Brown (died 1832). In 1830 Brown joined his father's practice. He later took it over after his father's death in 1832. Brown junior died on 4 December 1860. A monument in St. Cuthbert's churchyard, Edinburgh, Scotland commemorates his life.
Sources:
Colvin, Howard, A Biographical Dictionary of British Architects 1600-1840, 3rd edition (New Haven and London: Yale University Press, 1995), pp. 167-168.