Complex sentence: She was the daughter of Dr Andrew Balfour and belonged to one of Scotland's foremost scientific families--the Balfour home (at St John's Hill near Salisbury Crags) had been constructed in 1770 for the unmarried geologist James Hutton (1726--1797).
Split into simpler sentences: She was the daughter of Dr Andrew Balfour and belonged to one of Scotland's foremost scientific families. The Balfour home (at St John's Hill near Salisbury Crags) had been constructed in 1770 for the unmarried geologist James Hutton (1726--1797).