Complex sentence: Hawkins and his wife Mary lived at Redlands Farm, Holmwood, and are both buried at St Mary Magdalene's Church, Holmwood, which he designed, and where there is a memorial window to him.
Split into simpler sentences: Hawkins and his wife Mary lived at Redlands Farm, Holmwood, which he designed. He and his wife are both buried at St Mary Magdalene's Church, Holmwood, which he also designed, and where there is a memorial window to him.