Lost letter gets delivered in London after more than a century

In a case of "better late than never," a letter that was in 1916 got recently delivered in London, making it reach there after more than 100 years. Yes, it finally did, but unsure whether the person it was addressed to (Katie) was alive to go through the words. The letter was addressed to Katie Marsh and was sent by a person named Christabel Mennell, the latter reportedly being Katie's friend.