Eliphalet's mother died while he was a youth and his father placed the boy with a family on Long Island, New York while he continued his recruiting and intelligence activities for the British. After the War, Eliphalet likely continued in New York while his father searched for land and compensation from the British government, then joined him in his 1793 expedition to settle at Long Point. For December 1794 Reverend Robert Addison recorded in his register "Dec. 15. Mr. Barnham, a stranger, dropped down dead." It is believed that Eliphalet Douglas Barnum, and a Douglas Barnum mentioned in the Kent County Biographical Record (1904) were the same person. Eliza Ann Wood stated that her parents were Jacob Wood and Ann Barnum, the latter born in 1793 to "Douglas" Barnum and Mary Willson. Soon after Eliphalet Douglas Barnum died, his brother Nathan Bunnell Barnum moved from New York and married his widow.