Complex sentence: During the Second World War he worked for various ministries of the UK Government, and in 1948 Jowitt (by then Lord Chancellor) made Devlin (then aged 42) a High Court judge, the second-youngest such appointment in the 20th century.
Split into simpler sentences: During the Second World War he worked for various ministries of the UK Government, and in 1948 Jowitt (by then Lord Chancellor) made Devlin a High Court judge. He was 42, the second-youngest such appointment in the 20th century.