I had a look at the online catalogue for the Conwy Archives and this item appeared when I put in "Pwllygwichiad" into their search engine. The article shows that there is actually a photo of Richard Hughes in the Conwy Archives records
There are only 5 items listed there for Pwllygwichiad but each one may provide an interesting and valuable bit of info for KH and Bri and importantly there are photos too to put a face to a name
CP137/1
Teitl / Title Richard Hughes
Ddisgrifiad / Description copper miner, and a contractor for the building of Marine Drive, Llandudno. He originated in Amlwch, co. Anglesey and came to Llandudno in 1833 to work in the copper mines. In 1834 he married Catherine, dau. Peter and Elizabeth Jones, Pwllygwichiad Farm.
[The importance of this picture cannot be overestimated, as it shows the dress of a typical copper miner, although it is in fact a studio portrait. A later photograph appeared in an article in the Llandudno Advertiser, showing an older Richard Hughes and wife at the same location, the editor of the newspaper c. 1920 being a family member, Arthur R Hughes.
Photographer: W S Laroche, The Rock Studio, Marine Drive, Great Orme. Home address: Ty Fry, Old Road, Llandudno [see advertisement on dorse].
A second article mentions Joseph Jones
CD4/33/10/6
Teitl / Title DRAFT TRANSER OF MORTGAGE
Ddisgrifiad / Description 1 William Hughes of 1 Castle Street, Conway, gent
2. Joseph Jones of Centre Vale, pa of Llandudno, lodging house keeper
3. Anne Emmons of Plough Inn, town of Kidsgrove, Stafford, widow
Re parcel of land, part of certain field on Pwllygwichiad Farm, by Tudno Street, Llandudno, for securing £500.
Dyddiad / Date 1874 May 15
Graddau / Extent 1 item
Lefel / Level