Livanos Brothers became John Livanos & Sons in 1939. Accounts say Michael J. and George became independent owners, but use differing initials for George. The firm operated Greek and UK fleets and later acted as agent for concerns including Amfitriti, Anatolian Maritime, Lamda Shipping, North Europe & Persian Gulf Transport and West End Shipping.
Keep the explicit scope label independent; no alias or company identity is inferred.