In 1870-72, John Marius Wilson's Imperial Gazetteer of England and Wales described Llansawel like this:
LLANSAWEL, a village and a parish in Llandilofawr district, Carmarthen. The village stands on the river Cothi, amid mountain scenery with a romantic view, 8 miles NW of Llangadock r. station, and 9 N of Llandilo-fawr; is a polling-place; was once a markettown; and has a post office under Carmarthen, and fairs on the Friday after 12 May, 15 July, 23 Oct., and the Friday after 12 Nov. The parish includes the townships of Edwins, Ganol, Glyn, and W en. Acres, 10,017. Real property, £4,323. Pop., 1,003. Houses, 207. The property is divided among a few. Edwins House is the seat of the Williamses. The living is a vicarage, an aexed to the vicarage of Cayo-Conwyl, in the diocese of St. David's. The church is good.
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 Llansawel has changed, please see our redistricted information for the modern district of Carmarthenshire. More detailed statistical data are available under Units and statistics, which includes both administrative units covering Llansawel and units named after it.
GB Historical GIS / University of Portsmouth, History of Llansawel in Carmarthenshire | Map and description, A Vision of Britain through Time.
Date accessed: 29th May 2015
Click here for more detailed advice on finding places within A Vision of Britain through Time, and maybe some references to other places called "Llansawel".