While trawling through Sir Arthur Conan Doyle's essay collection Through the Magic Door, I noticed that he mentions the colour green many times.
This gave me the idea of looking for occurrences of this colour in Conan Doyle's life. I found more green connections than I was expecting, including some for Sherlock Holmes, and have summarised my findings here. The people, places and other items in the list may not seem particularly significant, but they certainly are interesting.
Could it be more than just coincidence that some of Conan Doyle's work was probably inspired well before it started by someone called Green, was definitely documented long after after it ended by another person with the name of Green, and during the productivity period in the middle was edited by a man with Green in his name and published by a company with Green in its name?
Richard Lancelyn Green (1953 - 2004) was considered to be the world's foremost scholar and leading authority on the topics of Sherlock Holmes and Sir Arthur Conan Doyle. He collected much material and produced extensive notes for a three-volume biography of Conan Doyle, but died in mysterious circumstances before it was finished.
He collected and introduced some Sherlock Holmes tribute stories: