Complex sentence: Kimball or Kimble Bent was born in Eastport, Maine, USA and ran away to sea at 17 and spent three years travelling the Atlantic seaboard as a sailor/gunner in the US Navy.
Split into simpler sentences: Kimball or Kimble Bent was born in Eastport, Maine USA. He ran away to sea at 17 and spent three years travelling the Atlantic seaboard as a sailor/gunner in the US Navy.