Complex sentence: Will's oldest son William (Bill) continued to run the jewellery shops for many years while his second son Anthony Hinds (Tony) became famous as one of the main players in the history of Hammer Film Productions.
Split into simpler sentences: Will's oldest son William (Bill) continued to run the jewellery shops for many years. His second son Anthony Hinds (Tony) became famous as one of the main players in the history of Hammer Film Productions.