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An eye on the Survey at History Ireland; 19th Century Ordnance Survey of Ireland at Translations; Ordnance Survey Ireland (OSi) 19th Century Historical Maps: collection of mainly 19th-century maps of almost 150 cities, towns, and villages in the Republic of Ireland. A UCD Digital Library Collection. Geological Survey Maps Collection.
In 1838, surveyors from the Ordnance Survey of Ireland visited Ballyknockan in preparation for the creation of their first Ordnance Survey maps, and noted 160 men in the village working onsite across three quarries. [26] They remarked of the quarry(ies): "...the best in this part of the kingdom, and has been in use for the last 14 years."
Thomas Frederick Colby FRS FRSE FGS FRGS (1 September 1784 – 9 October 1852), was a British major-general and director of the Ordnance Survey (OS). A Fellow of the Royal Astronomical Society and Royal Society, Colby was one of the leading geographers of his time. An officer in the Royal Engineers, Colby overcame the loss of one hand in a ...
One series of historic maps, published by Cassini Publishing Ltd, is a reprint of the Ordnance Survey first series from the mid-19th century but using the OS Landranger projection at 1:50,000 and given 1 km gridlines. This means that features from over 150 years ago fit almost exactly over their modern equivalents and modern grid references can ...
He also taught Irish to Thomas Larcom for a short period in 1828 and worked for Myles John O'Reilly, a collector of Irish manuscripts. from a miniature by Bernard Mulrenan (1803-1868) Following the death of Edward O'Reilly in August 1830, he was recruited to the Topographical Department of the first Ordnance Survey of Ireland under George ...
Ordnance Survey Memoirs of Ireland. The Ordnance Memoir of Ireland was a projected 1830s topography of Ireland to be published alongside the maps of the Ordnance Survey of Ireland using materials gathered by surveyors as they traversed the country. The project was cancelled in 1840 as too expensive and beyond the survey's original scope.
The Ordnance Survey began producing six inch to the mile (1:10,560) maps of Great Britain in the 1840s, modelled on its first large-scale maps of Ireland from the mid-1830s. This was partly in response to the Tithe Commutation Act 1836 which led to calls for a large-scale survey of England and Wales.
Joseph Ellison Portlock. Major-General Joseph Ellison Portlock (30 September 1794 – 14 February 1864) was born at Gosport and was a British geologist and soldier, the only son of Nathaniel Portlock, and a captain in the Royal Navy. [1] Educated at Blundell's School [2] and the Royal Military Academy, Portlock entered the Royal Engineers in 1813.