Thomas Rickman the Elder was an architect and historian active in the 19th century. He was the father of architect Thomas Miller Rickman (born 1827, died 1912).
Aldrich, Megan, ‘Rickman, Thomas (1776-1841)', Oxford Dictionary of National Biography (Oxford: Oxford University Press, 2004) <[http://www.oxforddnb.com/view/article/23607> [accessed 29 April 2008]
Colvin, Howard, A Biographical Dictionary of British Architects 1600-1840, 3rd edition (New Haven and London: Yale University Press, 1995), pp. 812-817.
Dictionary of Scottish Architects, 'Thomas Rickman', DSA Architect Biography Report [accessed 29 April 2008]
National Archives, National Register of Archives, Person Details, 'Rickman, Thomas (1776-1841), architect and historian, GB/NNAF/P139258' [accessed 29 April 2008]