Orr married Juliet Dows, heiress to the fortune of a large grain dealer.

Once established, Orr invited his nephew, Charles A. Munn Sr., to join him in the United States.

Orr's marriage to Juliet Dows, the daughter of the nation's largest grain dealer, greatly enhanced his power and prominence.

After the infamous corruption scandal of 1905, he became president of the Equitable Insurance Company.

Best known for arranging the financing and construction of New York's subway system, his estate was valued at more than $10 million in 1914.