Complex sentence: The facility was named "Kamakaiwi Field" after James Kamakaiwi, a young Hawaiian who had arrived with the first group of four colonists, was subsequently picked as leader and spent a total of over three years on Howland, far longer than the average recruit.
Split into simpler sentences: The facility was named "Kamakaiwi Field" after James Kamakaiwi, a young Hawaiian who arrived with the first group of four colonists. He was selected as the group's leader and he spent more than three years on Howland, far longer than the average recruit.