On February 8, 1887, Loomis was married to Julia Josephine Stimson (1861–1933). Julia was a sister of Dr.
Lewis Atterbury Stimson, a prominent surgeon and father of
U.S. Secretary of State and
War Henry Stimson. Together, they were the parents of three children: • Julia Atterbury Loomis (1890–1974), who married Landon Ketchum Thorne (1888–1964). • Henry Loomis, who died of rabies while still a small child; he was bitten by a rabid dog on the street near the family's house in Manhattan. The family were snubbed socially as a result, since a divorce was regarded as a shameful event. William Farnsworth Loomis, and
Henry Loomis who was director of the
Voice of America. == References ==