I’ve been alternating between annotating Arthur Jermyn, The Nameless City (version 2!) and The Call of Cthulhu.
The Wikipedia pages for Arthur Jermyn has a rudimentary family tree, and I thought that would be a good idea to add to my annotated edition. Here’s most of the information I was able to glean from the story:
I could put more speculative dates in there, but it’s getting pretty cluttered already.