a rill called Nantmerchan (Topographic feature).
Grid Reference: SN 03017 35226. Parish: Llanychlwydog, Pembrokeshire
When recorded: 1603. Primary Source: Description of Penbrokshire. Secondary Source: Place-Names of Pembrokeshire

Afon Merchon (Topographic feature).
Grid Reference: SN 72397 41761. Parish: Cilycwm, Carmarthenshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Aleppo Merchant Inn (Field).
Grid Reference: SN 96250 96410. Parish: Carno, Montgomeryshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Avon Merchion (Topographic feature).
Grid Reference: SJ 01993 68810. Parish: Llannefydd, Denbighshire
When recorded: 1699. Primary Source: Parochialia 1. Secondary Source: none

Brickil yn nimerchion (Settlement).
Grid Reference: SJ 10484 75202. Parish: Tremeirchion, Flintshire
When recorded: 1699. Primary Source: Parochialia 1. Secondary Source: none

Bryn-merched (Unclassified).
Grid Reference: SN 84514 26081. Parish: Traean-glas, Brecknockshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Brynmerched Issa (Field).
Grid Reference: SN 84424 26514. Parish: Traean-glas, Brecknockshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Brynmerched Uchaf (Field).
Grid Reference: SN 84307 26606. Parish: Traean-glas, Brecknockshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Cae Glyn mercha (Field).
Grid Reference: SN 45240 29186. Parish: Llanllawddog, Carmarthenshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Cae LLwyn Y Merched (Field).
Grid Reference: SN 98842 30384. Parish: Aberyscir, Brecknockshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin