In 1870-72, John Marius Wilson's Imperial Gazetteer of England and Wales described Caron Is Clawdd like this:
TREGARON, a small town, a parish, a sub-district, and a district, in Cardigan. The town stands on the Manchester and Milford railway, 10 miles NE by N of Lampeter; was anciently a borough, disfranchised in 1730; is now a polling place; . and has a post-office‡ under Carmarthen, a r. station, a church a Calvinistic Methodist chapel, and fairs on 16 March and 8 Oct. Pop., about 800.The parish is called also Caron-ys-Clawdd, and has been noticed under that title.The sub-district includes also 7 townships of Llanddewi-brefi. ...
Acres, 67,288. Pop., 3,978. Houses, 848. The district contains also Gwnnws and Llangeitho sub-district, and comprises 122,050 acres. Poor rates in 1863, £3,882. Pop. in 1851, 10,404; in 1861, 10,737. Houses, 2,247. Marriages in 1863, 75; births, 299,-of which 36 were illegitimate; deaths, 179,-of which 37 were at ages under 5 years, and 8 at ages above 85. Marriages in the ten years 1851-60, 630; births, 3,221; deaths, 1,907. The places of worship, in 1851, were 10 of the Church of England, with 1,764 sittings; 2 of Baptists, with 270 s.; 1 of Wesleyans, with 60 s.; and 15 of Calvinistic Methodists, with 4,574 s. The schools were 4 public day-schools, with 294 scholars; 6 private day-schools, with 158 s.; and 38 Sunday schools, with 4,281 s.
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 Caron Is Clawdd has changed, please see our redistricted information for the modern district of Ceredigion. More detailed statistical data are available under Units and statistics, which includes both administrative units covering Caron Is Clawdd and units named after it.
GB Historical GIS / University of Portsmouth, History of Caron Is Clawdd, in Ceredigion and Cardiganshire | Map and description, A Vision of Britain through Time.
Date accessed: 25th July 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 "Caron Is Clawdd".