On May 14, 1891, he married
Gretchen Osgood, daughter of Dr. Hamilton Osgood and Margaret Cushing (Pearmain) Osgood at Trinity Church in Boston. The Osgoods were a well-known Beacon Hill family that claimed a direct genealogical line to
Anne Hutchinson and
John Quincy Adams. The couple originally lived in apartments on Chestnut Street in Boston, but moved to a large house at 8 Mount Vernon Place. In 1898, he took a world tour with his family, making an extended stay in
Japan and California. He made a bicylce tour of Europe in 1933. Warren was a member of the Boston Athletic Association, the
Boston City Club, the
Economic Club, the
Harvard Club of Boston, the
National Arts Club, the
Twentieth Century Club, and the
Union Club of Boston. Fiske Warren died from heart disease at
Massachusetts General Hospital in Boston on February 2, 1938. ==References==