sentences:  President Teddy Roosevelt appointed him to the National Conservation Commission in 1908, and it was Mackenzie, then manager of the Brazil Land, Cattle and Packing Company, with whom Roosevelt stayed when he visited Brazil in 1913.MacKenzie was born near Tain, Ross-shire, Scotland, where he attended parish school and graduated from the Tain Royal Academy in 1869.He served in a law office and in the British Linen Bank, then as factor for Sir Charles Ross's estate at Balnagown Castle.