Nantyglyn72, there are a number of people on the forum who my have the info you are looking for but I can't find out anything on Google that will give you the answers you are looking for.
At least you know that the former Red Lion is now a private house called Islwyn and where exactly it is in the village.
If I was you, , I would call at the property and introduce myself and tell the owners what you are hoping to find. I'm sure that they would be interested to hear your story too.
Bryn Pydew is in the Parish of Llangystennin for your searches and the Conwy Archives in Lloyd Street Llandudno ( next to the lifeboat house ) will have a lot of info for you to browse over.
They have a burial index for Llangystennin Church and all the people buried there that have headstones on their graves are listed in the book.
The people are listed alphabetically so are easy to find and the Archives is open to the public Monday to Thursday.
Good luck with your searches
The photo is of the entrance to Ffordd Y Pentre where Islwyn is and the cottage is the Swan which was once a pub, then a shop and post office