The younger James Lundin, now also known as Drummond, joined the
British Army in 1771. and served with the Battalion in India. Upon his father's death on 18 July 1781, James succeeded to his father's claim to the earldom of Perth (his elder brother Thomas, who moved to America, had died the previous November), but did not use the title. In 1784,
an Act was passed allowing the Crown to grant to the heirs-male the estates that had been forfeited in 1745, and on 8 March 1785 the
Court of Session declared that he was the person entitled to the Drummond estates (including
Drummond Castle), which he was duly granted. He submitted a claim to be
Earl of Perth in 1792, but withdrew it in 1796, and on 26 October 1797 was created a
Peer of Great Britain as
Lord Perth, Baron Drummond of Stobhall in the County of Perth. ==Marriage and issue==