Complex sentence: Abe claimed to have sailed around the world with Chief Harry Simmon Morris, who was an Ordinary Seaman and bugler on the "USS Kearsarge (BB-5)" in 1908 during the cruise of the Great White Fleet.
Split into simpler sentences: Abe claimed to have sailed around the world with Chief Harry Simmon Morris. Morris had served as an Ordinary Seaman and bugler on the "USS Kearsarge (BB-5)" in 1908 during the cruise of the Great White Fleet.