Once again, I am indebted to my equally mysterious friend, Nick from Holywood, for pointing me in the direction of a remarkable book called "Holywood county Down, Then and Now" by the Rev. McConnell Auld M.A., known to all and sundry as 'Con Auld,' whose list of achievements would fill a book on its own. The book is A4 size, landscape and includes practically everything there is to know about the small town on Belfast Lough.
Intriguingly, Con Auld includes a sketch of the quay and lighthouse in his book (top picture) but it is unclear if this sprang from his imagination or if he copied it from another source. (Another sketch of his of the first Holywood Bank lighthouse looks remarkably accurate, so I am inclined to believe the latter. He lists his sources at the back of the book but it would take me a lifetime to go through them all and find the relevant illustration)
Sadly Con Auld died a couple of years ago, leaving to the people of Holywood this remarkable legacy, an example to all local historians of what can be achieved through research and collating.