 On his return to London he was appointed first chief commissioner of West Indian accounts and became a major shareholder in the Hudson's Bay Company.He was appointed a member of the Hudson's Bay Company London committee in November 1811 and supported the Red River Settlement project of his cousin, Lord Selkirk, writing a number of pamphlets on the poor treatment Selkirk had received from rival trading companies and the British Government.He visited Montreal and Red River in 1821 after Selkirk's death as executor of his will and on his return to London the following year published "Historical notes respecting the Indians of North America