Gentlemen Bankers investigates the social and economic circles of one of America's most renowned and influential financiers to uncover how the Morgan family's power and prestige stemmed from its unique position within a network of local and international relationships.

At the turn of the twentieth century, private banking was a personal enterprise in which business relationships were a statement of identity and reputation. In an era when ethnic and religious differences were pronounced and anti-Semitism was prevalent, Anglo-American and German-Jewish elite bankers lived in...