James Maitland Balfour (5 January 1820 – 23 February 1856) was a Scottish land-owner and businessman.He made a fortune in the 19th-century railway boom, and inherited a significant portion of his father's great wealth.[3] He served as Member of Parliament for Haddington from 1841 until 1847 and was also Major Commandant of the East Lothian Yeomanry Cavalry, who erected the Balfour Monument in his honour overlooking Traprain Law, 2+1⁄2 miles (4.0 km) south west of East Linton in Scotland.Balfour married Lady Blanche Mary Harriet Gascoyne-Cecil, daughter of James Gascoyne-Cecil, 2nd Marquess of Salisbury, on 15 August 1843 (her brother Robert later became Prime Minister of the United Kingdom).They had eight children, five sons and three daughters:[4] Balfour died of tuberculosis on 23 February 1856 in Funchal, Madeira, aged 36.