In 1887, John Bartholomew's Gazetteer of the British Isles described Abergavenny like this:
Abergavenny, par. and market town, in the above hundred, at confluence of Gavenny and Usk rivers, 17¼ miles N. of Newport and 165 miles from London by rail -- par., 4251 ac. (32 water), pop. 7886; town, pop. 6941; P.O., T.O., 2 Banks, 1 newspaper. Market-days, Tuesday and Friday. It has remains of Norman castle; and extensive collieries and iron-works are in the vicinity.
A Vision of Britain through Time includes a large library of local statistics for administrative units. For the best overall sense of how the area containing Abergavenny has changed, please see our redistricted information for the modern district of Monmouthshire. More detailed statistical data are available under Units and statistics, which includes both administrative units covering Abergavenny and units named after it.
GB Historical GIS / University of Portsmouth, History of Abergavenny in Monmouthshire | Map and description, A Vision of Britain through Time.
Date accessed: 25th June 2016
Click here for more detailed advice on finding places within A Vision of Britain through Time, and maybe some references to other places called "Abergavenny".