Complex sentence: Emerson was born in Todmorden, Yorkshire while his family had been evacuated from the south coast of England during the war, and grew up in the seaside resort of Worthing, West Sussex.
Split into simpler sentences: Emerson was born in Todmorden, Yorkshire to where his family had been evacuated from the south coast of England during the war. He grew up in the seaside resort of Worthing, West Sussex.