The Ordnance Survey Memoirs of Ireland is a detailed source for the history of the northern half of Ireland immediately before the Great Famine. The books were written in the 1830s to accompany the 6" Ordnance Survey maps and document the landscape, buildings and antiquities, land-holdings and population, employment and livelihood of the parishes.
Published by the Institute of Irish Studies, the three reprints are:
- Vol. 20: Parishes of Co. Tyrone II – Mid and East Tyrone
- Vol. 28: Parishes of Co. Londonderry IX – West Londonderry
- Vol. 40: Counties of South Ulster – Cavan, Leitrim, Louth, Monaghan and Sligo
A new book published by the Ulster Historical Foundation may also be of interest:
Scotch-Irish Merchants in Colonial America: The Flaxseed Trade and Emigration from Ireland, 1718-1775, by Richard K. MacMaster. Published by the Ulster Historical Foundation, this new book tells the story of the transatlantic links between Ulster and America in the eighteenth century.