A recent Perplexity.ai search led me to find letters written by one Samuel Bradley Wiggin, who had mentioed in one or more of the letters O.R. Singleton, the Mississippi lawyer, politician, plantation owner and slaveholder who signed Robert Jefferson’s freedom papers. A man who, despite serving in both the U.S. Congress and in the Confederate Congress, there seems to be little out there to find.

For about three years, I've had somewhat of a love affair with a man who has been dead nearly 140 years. And yes, my husband knows all...