Dictionary of Irish Architects 1720 - 1940

British military engineer, for whom see Oxford DNB and Min.Proc.Inst.CE 12 (1852-3), 132-137. Thomas Colby was in charge of the Ordnance Survey of Ireland between 1825 and 1846. His assistants included THOMAS DRUMMOND THOMAS DRUMMOND , THOMAS LARCOM  THOMAS LARCOM and JOSEPH ELLISON PORTLOCK.  JOSEPH ELLISON PORTLOCK.


Author Title Date Details
Andrews, J.h. A Paper Landscape: the Ordnance Survey in nineteenth-century Ireland 1975 Oxford: Clarendon Press, 1975.
Portlock, Joseph Ellison Memoir of the Life of Major-general T. Colby, together with a Sketch of the Origin and Progress of the Ordnance Survey of Great Britain and Ireland 1869 London, 1869.