Blackhay (EN) / Hay Dhu (KW)

Hay thu 1284 (Gover, 1948) (Padel, 1985) Blackehay 1595 (Gover, 1948) Blackhay 1748 (Martyn, 1748) Blakenhay 1793 (CRO, RH/7/1/2/1, 1793) (Bond, 2012) Haydew 1793 (CRO, RH/7/1/2/1, 1793) (Bond, 2012) Black Hay 1842 (TA, 1842) Blackhay Farm 1884 (Symons, 1884) (Bond, 2012) Blackhay 1888 (OS, 1888) Blackhay Mine (Iron, Disused) 1888 (OS, 1888) Blackhay Farm 2003 (OS, 1:25000, 2003) (Bond, 2012) Blackhay Farm 2015 (OS, 2015)