Exactly when - and why - was it called "Caroline House"?

When did someone paint the words "Caroline" and "House" on the two main pillars enclosing the doorway at 6 Chesterfield Gardens, and more important: why did they do it?

The second part of that unanswered question is at the very foundation of the issue concerning the true identity of "Radio Caroline" - which was more like an ethereal phantom image and sound, than anything that actually existed in the real world in real time.

"Radio Caroline" did not exist!

But, a lot of people were brainwashed into seeing things that were not part of the real world and they came to believe and parrot a myth as though it was a fact, and they continue to do so to this day. Not only that, but after Ian Cowper Ross reopened the floodgates to this lie in 1990, radio and television producers; academics; journalists and a library of book publishers all began turning up the volume with a chant that "Caroline continues".

In the real world there was no such company as "Radio Caroline" between the years 1964 and 1967 that actually represented the activities taking place on the airwaves and at 6 Chesterfield Gardens (and satellite addresses), under that name. Then came the legal end of the hoax. It occurred at midnight on August 14, 1967, only to be immediately contradicted with a lie by Johnnie Walker, just after midnight. That is when he proclaimed that "Caroline continues"!

No, it did not!

The jig was up and that should have been the end of the matter, except that Johnnie Walker decided to tell a lie, and then, years later, Ian Cowper Ross began a second edition of that lie which contradicted the first version spun by Johnnie Walker. Ian Cowper Ross did not attempt to promote the Johnnie Walker lie, because Ian Cowper Ross concentrated upon promoting the original lie tied to the painting of those words on those two pillars at 6 Chesterfield Gardens.

Ian Cowper Ross laid down the foundation of a belated mythology upon which the Johnnie Walker lie could rest. Ian Cowper Ross gave birth to the legend of "Jimmy Ross"!

Ian Cowper Ross used exactly the same technique that comedian Steve Martin tried to explain in humor, and that is - never move to the second statement - without getting an answer to the first question.

But that is what politicians and anoraks do when they ignore the first question that they cannot answer, and then they move on to a statement of fiction - which they claim as fact, and then build upon it.

So, back to the initial question:

Why were the words "Caroline" and "House" painted on the two pillars at 6 Chesterfield Gardens?