Complex sentence: Captain Lemon had become seriously ill after the boat journey and did not recover even after returning to England in the early fall of 1931, dying at a hospital in Bath the following year on 23 October 1932.
Split into simpler sentences: Captain Lemon had become seriously ill after the boat journey and did not recover, even after returning to England in the early fall of 1931. He died at a hospital in Bath the following year on 23 October 1932.