 When he returned to the U.S., he attended Columbia University, where he graduated in 1880, followed four years later from the Columbia School of Mines.While at Columbia, he became friends with future governor of New York and President of the United States Theodore Roosevelt.In the election of 1883, when 24 year old Roosevelt was running for reelection to the New York Assembly, Roosevelt asked Morgan to supervise a polling place at 733 7th Avenue to prevent voter fraud.