Templemore Ordnance Survey Memoir
Only one volume was published at the time that the compilation of Ordnance Survey Memoirs was ongoing. This was for Templemore parish, Co. Londonderry, which includes the city of Derry on the west side of the River Foyle. This was a substantial and very detailed volume running to more than 350 pages. It was published in 1837 and its compilation was carried out under the general direction of Colonel Thomas Colby. The book can be read in full on the Internet Archive.