18
Jun
As of April, the world's oldest living man is believed to be Englishman John Alfred Tinniswood at 111 years old, according to Guinness World Records. (Guinness lists María Branyas Morera, a California native living in Spain, as the world's oldest woman, at 117.) When Mr. Markoff heard the news of his rise to the top of the list, "he just smiled and said, 'Well, someone has to be there,'" his daughter said in an interview. He stood out not only for his longevity but also for a lucidity unusual for his age. Until her final months, she pored over the…