Herbert was the eldest son of Herbert George and Nellie Sarah Jane (nee Westerman) Westerman born at Ashwell, Hertfordshire 6 September 1896. He was a pupil at the Merchant Taylors School in Ashwell.
Percy was born in Ashwell, Hertfordshire, the only son of Charles Thomas and Louisa (nee Davis) Worboys on 8 September 1891. He was a pupil at the Merchant Taylors School in Ashwell.