Complex sentence: The church was burned out during the London Blitz in 1941, though the chapel survived, leading to a restoration by Adrian Gilbert Scott between 1959 and 1961, including a new organ by John Compton.
Split into simpler sentences: The church was burned out during the London Blitz in 1941, though the chapel survived. The main church was restored by Adrian Gilbert Scott between 1959 and 1961, including a new organ by John Compton.