Thanks for the thinking out loud, Steve. I’ll take a look at Obsidian, but with a downdraft already in Scrivener, and the data for births/deaths/events in Timeline, I’m wary of introducing another new piece of software at this point.
Most of the story is thankfully straightforward for time and sequence of events. It’s the Ancestors and Dad’s ‘first family’ that are being uncooperative: so many people, so many possible storylines! (I should write a novel just about his grandparents’ arrival and life in the US in 1880…)
Here’s the plan in Scrivener: