James Kellaway Colling was an architect active from the early- to mid-19th century until his death in 1905. He is particularly noted for his designs of gothic and medieval decorative ornament.
Sources:
National Archives, National Register of Archives, Person Detail, 'Colling, James Kellaway (1816-1905), Architect, GB/NNAF/P163402' <http://www.nationalarchives.gov.uk/nra/searches/subjectView.asp?ID=P48591&tabType=ARCHIVE> [accessed 17 December 2007]