MAPS of Co. Longford
Maps - the Key to Understanding
Maps are absolutely essential to understanding the history of families in Co. Longford.
MAPS show the administrative divisions such as baronies, parishes and townlands, and how they overlap
MAPS show the physical relationship between locations where families lived or moved
MAPS give hints on where else to look when a family has moved, or when you are looking for a second family that intermarried soon after emigrating.
Overview Maps - These show the divisions and help determine where to look for records.
Modern Ordnance Survey Maps - The landforms, and present names may provide clues to the 19th and 18th century family's geographical location
Victorian Ordnance Survey Maps - These 6 inch to the mile maps offer detailed understanding of the areas. Most data on the maps was collected in the mid-1830s.
Victorian Ordnance Survey Maps with Land Parcel Markings - Sets of maps are available with an overlay of the land parcels that match the numbers in the printed version of the Griffiths Valuation. Subscribing to irishorigins.com is certainly the best way to obtain these. They also have on the site the printed text of the Griffiths Valuation.