Complex sentence: Additionally some towns and community organisations also renamed existing local feature like parks and buildings, while others set aside an area for a monument which was then unveiled in the presents of dignitaries including the Governor, Premier and descendants of the early settlers.
Split into simpler sentences: Additionally some towns and community organisations also renamed existing local feature like parks and buildings. Others set aside an area for a monument which was then unveiled in the presents of dignitaries including the Governor, Premier and descendants of the early settlers.