All above pictures scanned by Brand New Retro from the Illustrated London News, April 1966. (just a month after the bombing of Nelson’s Pillar) .
The article was entitled “Does Anyone Care for a Noble City?” Photos by Pat Maxwell, article by Andrew Causey.
The top pic is Mariga Guinness then the wife of Desmond Guinness (wikipedia link) the president of the Irish Georgian Society.
The traffic Garda picture was taken at the junction of Grafton St & Suffolk St. The building, now the home to Boyle Sports, was according to the article due to be demolished.