They had one son and three daughters :
Elphinstone married his first cousin Frances Warburton ( daughter of John Warburton , junior , and niece of John Clater Aldridge ) on 14 February 1803 .
Elphinstone had one son and three daughters :
Elphinstone married his first cousin Frances Warburton ( daughter of John Warburton , junior , and niece of John Clater Aldridge ) on 14 February 1803 .