According to The Independent, Mark Twain didn’t want his memoirs published until at least 100 years after his death:
Scholars are divided as to why Twain wanted the first-hand account of his life kept under wraps for so long. Some believe it was because he wanted to talk freely about issues such as religion and politics. Others argue that the time lag prevented him from having to worry about offending friends.
One thing’s for sure: by delaying publication, the author, who was fond of his celebrity status, has ensured that he’ll be gossiped about during the 21st century. A section of the memoir will detail his little-known but scandalous relationship with Isabel Van Kleek Lyon, who became his secretary after the death of his wife Olivia in 1904. Twain was so close to Lyon that she once bought him an electric vibrating sex toy. But she was abruptly sacked in 1909, after the author claimed she had “hypnotised” him into giving her power of attorney over his estate.
Their ill-fated relationship will be recounted in full in a 400-page addendum, which Twain wrote during the last year of his life. It provides a remarkable account of how the dying novelist’s final months were overshadowed by personal upheavals.
“Most people think Mark Twain was a sort of genteel Victorian. Well, in this document he calls her a slut and says she tried to seduce him. It’s completely at odds with the impression most people have of him,” says the historian Laura Trombley, who this year published a book about Lyon called Mark Twain’s Other Woman.