 Hume left the Florida Experiment Station after five years to accept a similar position with the North Carolina Agricultural Experiment Station in Raleigh, North Carolina.Hume returned to Florida to accept a position as the general manager of the Glen St. Mary Nurseries Company, a leading grower of citrus trees.He remained with the company from 1917 to 1929, later serving as the company's president and then the chairman of its board of directors.