The second plaque was not identified. It is in the Botanical Gardens, see photographs:
This plaque is a memorial to King George V who died on January 20th 1936.
In “The Bulletin – the changing fortunes of the Botanical Gardens” by Glynis Shaw:
it says “In October 1936 Rear Admiral R. Rowley Conwy C.M.G., Lord Lieutenant of the County, requested that a fund be established for a National Memorial to the late King George V” and “a further two-acre Memorial Garden with a bandstand was to be made by Madryn Avenue”. Has the plaque been re-sited? Does anyone have any memory of the Memorial Garden for George V?
George V became King in May 1910 when Edward V11 died. There were Silver Jubilee celebrations in Rhyl in May 1935. The King died within the year in January 1936.