Eleonora Hunter 24th Laird of Hunterston was born in 1764 and inherited the Estate in 1796. She married her first cousin Robert Caldwell. His mother was Margaret Hunter who married Robert Caldwell. Margaret was the daughter of the 22nd Laird of Hunterston Patrick Hunter.
Eleonora and Robert (who assumed the Hunter name) built Hunterston House in 1799. They had seven children one being Robert Caldwell 25th Laird of Hunterston.