Starting off a grocer, Ira Howard became rich as a sutler wholesaler during the American War of the Secession but died of old age at 48 or 49 years old. The trustees of his will carried out his wishes to prolong human life by financially encouraging those with long-lived grandparents to marry each other and have children. By the 22nd century, the "Howard families" have a life expectancy exceeding 150 years and keep their existence secret with the "Masquerade" in which the members fake their deaths and obtain new identities.