He became a captain the in 14th Dragoons in 1789 .
Was with his regiment in Ireland when he was elected at the 1790 general election as the MP for Dumfries Burghs .
He became a captain the in 14th Dragoons in 1789 , and was with his regiment in Ireland when he was elected at the 1790 general election as the MP for Dumfries Burghs .