Complex sentence: Major Hays liked the peaceful-sounding name, so he named his property "Waverley Hill" and the Board of Tuberculosis Hospital kept the name when they bought the land and opened the sanatorium.
Split into simpler sentences: Major Hays liked the peaceful-sounding name, so he named his property Waverley Hill. The Board of Tuberculosis Hospital kept the name when they bought the land and opened the sanatorium.