Newspaper clipping showing a photograph of members of the Cardiff Naturalists' Society during their first summer meeting in 1930 at the Cardiff Gas Light and Coke Company in Grangetown, Cardiff, 29 May 1930 Math Eitemau Uwchlwytho gan VCS Chronicle
Newspaper clipping showing a photograph of members of the Cardiff Naturalists' Society and friends during a visit to Cardiff Gas Works, Cardiff, 29 May 1930 Math Eitemau Uwchlwytho gan VCS Chronicle
Parc Glynllifon Estate gas works, Gwynedd, 1995 Math Eitemau Uwchlwytho gan Comisiwn Brenhinol Henebion Cymru
