Another Assassination, Another Widow, Another Embattled Book

Just about a hundred years ago, there was another shattering presidential assassination, another desperately unhappy (albeit very different) widow, and another well-meaning but indiscreet intimate who wrote a book that someone named Robert would have liked to suppress. The book that outraged Robert Todd Lincoln was called Behind the Scenes; Or, Thirty Years a Slave, and Four Years in the White House.