I find that those of us who write for enjoyment, often exploit our passion to the extreme. I speak of my new-found hobby, Genealogy, born of my writing a memoir, which at present stands at over 110,000 words.
As a discard of a fragmented family, I have never known family history beyond my parents, and it is fair to respectfully add that I know very little of them also. To delve through history via one of the many ‘ancestry’ websites is a rewarding experience, especially when certificates turn up step-children of grandparents from an era when a step-child would be hidden, at least in name.
Such research might add little to a memoir, other than the ability to frame a tree in the head of the book. My joy here is to endorse the practice of family research. I sincerely believe that delivering to our own children the history of their being is both exciting and responsible.