Rhiw Saeson Factory (Unclassified).
Grid Reference: SH 90057 05299. Parish: Llanbrynmair, Montgomeryshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Rhiw-Saeson (Unclassified).
Grid Reference: ST 07075 82841. Parish: Llantrisant, Glamorgan
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Rhiw-Saeson-fâch (Unclassified).
Grid Reference: SN 16134 40371. Parish: Llantood, Pembrokeshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Rhiw-Saeson-uchaf (Unclassified).
Grid Reference: SN 16482 40397. Parish: Llantood, Pembrokeshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Rhu Saeson (Settlement).
Grid Reference: ST 07056 82844. Parish: Llantrisant, Glamorgan
When recorded: 1699. Primary Source: Parochialia 3. Secondary Source: none

Rhyd y Saeson (Topographic feature).
Grid Reference: SN 68766 26716. Parish: Llangadog, Carmarthenshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Rhyd y Saeson (Settlement).
Grid Reference: SH 82746 74908. Parish: Llansanffraid Glan-Conwy, Denbighshire
When recorded: 1699. Primary Source: Parochialia 1. Secondary Source: none

Rhyd y Saeson 'the Englishmen's Ford' (Unknown).
Grid Reference: SN 68728 26748. Parish: Llandeilo Rural, Carmarthenshire
When recorded: . Primary Source: none. Secondary Source: Carmarthenshire Inventory RCAHMW

Rhyd-y-Saeson (Unclassified).
Grid Reference: SH 82745 74906. Parish: Llansanffraid Glan-Conwy, Denbighshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Rhyd-y-Saeson,Nant Rhyd-y-Saeson (Unclassified).
Grid Reference: SJ 04465 41930. Parish: Llangar, Merionethshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website