 He was the elder brother of newspaper magnates William Berry, 1st Viscount Camrose and Gomer Berry, 1st Viscount Kemsley.Berry worked for his father's business before becoming a protégé of industrialist D. A. Thomas (later 1st Viscount Rhondda) in 1915.He took on more responsibility when Thomas joined the cabinet, and within three years he was a director of over 60 companies.