Aber-Pedwar (Settlement).
Grid Reference: SN 80876 35156. Parish: Llanfair-ar-y-bryn, Carmarthenshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: none

Aberpedwar Homestead (Settlement).
Grid Reference: SN 80876 35155. Parish: Llanfair-ar-y-bryn, Carmarthenshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Afon Pedwar (Topographic feature).
Grid Reference: SN 82209 35276. Parish: Llanfair-ar-y-bryn, Carmarthenshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Bryn pedwar ucha (Field).
Grid Reference: SJ 07603 58413. Parish: Llanynys, Denbighshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Cae aber pedwar ucha (Field).
Grid Reference: SN 81146 34816. Parish: Llanfair-ar-y-bryn, Carmarthenshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Cae pedwar a dimau (Field).
Grid Reference: SH 97255 47746. Parish: Llanfihangel Glyn Myfyr, Denbighshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Cae pedwar ar ddeg (Field).
Grid Reference: SH 47712 61016. Parish: Llanbeblig, Caernarfonshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Cae pedwar ar ddeg (Field).
Grid Reference: SH 47712 61016. Parish: Llanbeblig, Caernarfonshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Cae pedwar congl (Field).
Grid Reference: SH 52273 65992. Parish: Llanfair-is-gaer, Caernarfonshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Cae pedwar cornel (Field).
Grid Reference: SN 69706 90255. Parish: Ceulan-a-Maesmor, Cardiganshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin