Carson Chittom commented on The Red Box by Rex Stout (Nero Wolfe, #4)
From Wikipedia: "I never knew a plaguier case. We have all the knowledge we need, …
The main female character, Helen Frost, says in answer to a question from Nero Wolfe that she'll "be twenty-one in May." Given that this was published in 1937, that would make her just over 108 now, if she were a real person.