From the May 17, 1916 Brooklyn Daily Eagle:

“Kansas City, Mo. — John Arnold is today recovering from an operation in the Kansas City Emergency Hospital and the cause of his trouble–a lively and well-developed frog–is hopping about in a large jar at his bedside. Some time ago, Arnold says, he drank from a spring. He cannot tell whether the frog took up its abode in his interior as a tadpole or a small frog. The physicians who operated, liberating the frog and relieving Arnold of the nagging pain amidship, say Arnold is doing well. The frog speaks for itself.”