Treyouron 1226 (Pool, 1985)
Treyoren 1260 Weatherhill
Treyouren 1260 (Pool, 1985)
Treyhouran 1291 (Gover, 1948) (Pool, 1985)
Trewruen 1302 (Gover, 1948) (Pool, 1985)
Treyouran 1302 (Gover, 1948) (Pool, 1985)
Treyouwarn 1327 (Gover, 1948) (Pool, 1985)
Treyouran 1333 (Gover, 1948) (Pool, 1985)
Treyouran 1334 (Gover, 1948)
Trewruen 1343 (Gover, 1948) (Pool, 1985)
Treyouran 1368 (NA AR/1/379)
Trewrennen 1374 (Gover, 1948) (Pool, 1985)
Treouren 1446 (Gover, 1948) (Pool, 1985)
Treuren 1478 (Gover, 1948) (Pool, 1985)
Trewren 1386-1558 (NA C/1/1510/33-34)
Truren 1748 (Martyn, 1748)
Trewren 1757 (*CRO, P133/12/1, 1757) (Bond, 2009)
Trewren 1769 (Borlase, 1769, opp p164) (Bond, 2009)
Trowren 1782 (tenement)(*CRO, P133/5/1, 1782) (Bond, 2009)
Truren 1842 (tenement)(CRO, TA/133, 1842) (Bond, 2009) (Pool, 1985)
Trewren c.1870 Weatherhill
Trewren 1884 (farm)(Symons, 1884) (Bond, 2009)
Truren 1884 (4 tenements, 161 acres)(Symons, 1884) (Bond, 2009)
Trewern 1974 (OS 1974)