Complex sentence: Eric Beckett, legal counsel for the Foreign Office, was also a major member of the legal team, while additional support came from Hersch Lauterpacht, Humphrey Waldock, Richard Wilberforce, J. Mervyn Jones and M. E. Reed.
Split into simpler sentences: Eric Beckett, legal counsel for the Foreign Office, was also a major member of the legal team. Additional support came from Hersch Lauterpacht, Humphrey Waldock, Richard Wilberforce, J. Mervyn Jones and M. E. Reed.