John Borland Thayer (April 21st, 1862 - April 15th, 1912) was a First Class passenger of the Titanic. He died in the sinking. Thayer was Second Vice-President of the Pennsylvania Railroad. He was married to Marian Longstreth Morris and they had two daughters: Margaret "Peggy" and Pauline, and two sons, one of whom, Jack Thayer, accompanied them on their trip to Europe in 1912. Mr Thayer and his family had been in Berlin as guests of the American Consul General and Mrs Thackara two weeks prior to boarding the Titanic at Cherbourg as first class passengers (cabin C-68).