After returning, he wrote a book entitled: Wall Street to Cashmere: A Journal of Five Years in Asia, Africa, and Europe; Comprising Visits, during 1851, 2, 3, 4, 5, 6 to the Danemora Iron Mines, the 'Seven Churches', plains of Troy, Palmyra, Jerusalem, Petra, Seringpatam, Surat; With Scenes of the Recent Mutinies (Benares, Agra, Cawnpore, Luchnow, Delhi, etc.
[6] Through her mother, she was a direct descendant of Judge Robert Troup and Peter Goelet, and through her father, she was a direct descendant of James Duane (the Mayor of New York City), Robert Livingston, 3rd Lord of Livingston Manor, and Thomas Pell, 1st Lord of the Pelham Manor (and a Gentleman of the Bedchamber to Charles I).
[7] Together, Adelia and John were the parents of four sons and three daughters: Ireland died of apoplexy on October 11, 1913, at his home, 104 East 73rd Street in Manhattan.
[4] After a funeral service at the Church of the Heavenly Rest, he was buried in the Ireland family vault at Trinity Churchyard in Manhattan.
[20] Through his son John, he was grandfather of Louise Davis Ireland (1905-2001), co-author of "Children in the Family, a Psychological Guide for Parents" with Florence Powdermaker, and "Ligi-A Life in the Twentieth Century".