Fiske Warren

Mrs. Fiske Warren (Gretchen Osgood) and Her Daughter Rachel, 1903, John Singer Sargent (Museum of Fine Arts (Boston))

Frederick Fiske Warren (July 3, 1862 – February 2, 1938) was an American tennis player, businessman, developer, and Georgist reformer. He was a major supporter of Henry George's single tax system and created several experimental single-tax communities. He also worked to secure independence for the Philippines, following the Spanish–American War. Warren was the United States amateur tennis champion of 1891 and 1893.

Early life Warren was born in Waltham, Massachusetts on July 3, 1862. Known throughout his life simply as Fiske Warren, he was the son of Susan Cornelia (née Clarke) and Samuel Dennis Warren of Beacon Hill, Boston. Warren had four siblings: Samuel Dennis Warren II, Henry Clarke Warren, Edward Perry Warren, and Cornelia Lyman Warren.

Warren was raised in a mansion on 67 Mount Vernon Street on Beacon Hill in Boston and "Cedar Hill" in Waltham. As part of a philanthropic and well-educated family, Warren enjoyed a tranquil childhood. While at Harvard, he was a member of Alpha Delta Phi, Delta Kappa Epsilon (aka The Dickey Club), the Hasty Pudding Club, the Institute of 1770. In 1893 United States amateur champion lawn tennis, winning the Boston Athletic Association and the New York Racquet and Tennis Club competitions. Because of his efforts on behalf of the Philippines, The Syracuse Herald called Warren "an enthusiast and an idealist...of the Phillips or Garrison type" in January 1908. At one time, his communities had 9,000 residents and comprised 971 square miles with an annual rental of $428,598. 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.