After the records of the UK Singles Chart started in 1952 who was the first singer to be No 1?

Question

In Swansea, Wales, UK, what public service closed in 1961 after being open in various forms since 1807, when it was the first of its kind at that time to be put in service?

Answer 1

Al Martino with "Here In My Heart"
The other three options were the first three at No 1 during the January following Martino's No 1 spot.