Chiewoen 1263/1283 (Gover, 1948) (Pool, 1985)
Chyone 1503 Weatherhill
Chyone 1505 Weatherhill
Chyone 1508 Weatherhill
Chywone 1508 Weatherhill
Castle Anowthan 1584 (possible identification)(Russell, 1971, p40, citing from Norden, 1584)
Chywone 1623 Weatherhill
Chiwone 1623 (Gover, 1948) (Pool, 1985)
Karn Choone 1700 (Pool, 1985)
Castle Choon c.1740 (Pool, 1985)
Choon 1748 (Martyn, 1748)
Choon Castle 1748 (Martyn, 1748)
Ch’ûn Castle 1769 (Borlase, 1769, p232) (Bond, 2009)
Chyowne c.1840 (TA 1840) (Pool, 1985)
Ch’ûn 1861 Weatherhill
Choon Castle 1884 (Symons, 1884) (Bond, 2009)
Chywoon Castle 1884 (entrenchment in Morvah)(Symons, 1884) (Bond, 2009)
Choon Quoit 1884 (Bond, 2009)
Chywoon Quoit 1884 (Bond, 2009)
Chûn Cromlech 1888 (Remains of a Tumulus) (Ordnance Survey, 1888)
Chûn Castle 1888 (hillfort)(OS, 6”, 1888) (Bond, 2009)
Chûn Cromlech 1888 (Bond, 2009)
Chûn Downs 1888 (OS, 6”, 1888) (Bond, 2009)
Chun Castle 1960 (hillfort)(Thomas, 1960, p56)
Chun Quoit 1960 (Thomas, 1960, p50) (Bond, 2009)
Chûn Castle 1974 (OS 1974)
Chûn Downs 1995 (OS 1995)
Chûn Castle 2005 (settlement)(OS, 1:25000, 2005) (Bond, 2009)