Mary Elphinstone (died 1774) (1723–1774) Parents Sir James Elphinstone, 3rd Bt. Jean Rattray Children Sir Robert Dalrymple-Horn-Elphinstone of Horn and Westhall, 1st Bt. Margaret Dalrymple-Horn-Elphinstone Mary Dalrymple-Horn-Elphinstone James Dalrymple-Horn-Elphinstone Jean Dalrymple-Horn-Elphinstone Marion Dalrymple-Horn-Elphinstone Partners Robert Dalrymple-Horn-Elphinstone of Horn and Westhall