James Savage (1784–1873) was an American banker and author.
 He was one of the founding fathers of Provident Institution for Savings in the Town of Boston established in 1816 as the first chartered savings bank in the United States.
 James was also well known for his research as an antiquary and as author of "A Genealogical Dictionary of the First Settlers of New England."
 He was instrumental in helping his son-in-law, William Barton Rogers, establish MIT and helping his cousin, Frederic Tudor, establish the ice trade in the West Indies, among many other ventures.
Walden Pond is a lake in Concord, Massachusetts in the United States.
 A famous example of a kettle hole, it was formed by retreating glaciers 10,000–12,000 years ago.
 The pond is protected as part of Walden Pond State Reservation, a 335 acre state park and recreation site managed by the Massachusetts Department of Conservation and Recreation.
 The reservation was designated a National Historic Landmark in 1962 for its association with the writer Henry David Thoreau (1817–62), whose two years living in a cabin on its shore provided the foundation for his most famous work, "Walden; or, Life in the Woods".
William Tudor (March 28, 1750 – July 8, 1819) was a wealthy lawyer and leading citizen of Boston.
 His eldest son William Tudor (1779-1830) became a leading literary figure in Boston.
 Another son, Frederic Tudor, founded the Tudor Ice Company and became Boston's "Ice King", shipping ice to the tropics from many local sources of fresh water including Walden Pond, Fresh Pond, and Spy Pond in Arlington, Massachusetts.
Morelli's Gelato is a producer and retailer of ice cream.
 The company was founded in 1907 by Giuseppe Morelli.
 Initially he sold ice cream from a bicycle with his son Mario.
 As the business grew, an ice cream van was used.
 In 1932, an ice cream parlour was opened on the seafront of the seaside resort of Broadstairs.
Alexander Ethan Tudor-Hart (born Hart; 3 September 1901 – 1992) was a British doctor in South Wales who was active in the Communist Party of Great Britain.
 He was the great grandson of American merchant Frederic Tudor and father of Dr Julian Tudor-Hart.
William Tudor (January 28, 1779March 9, 1830) was a leading citizen of Boston, sometime literary man, and cofounder of the "North American Review" and the Boston Athenæum.
 It was Tudor who christened Boston "The Athens of America" in an 1819 letter.
 His brother Frederic Tudor founded the Tudor Ice Company and became Boston's "Ice King", shipping ice to the tropics from many local sources of fresh water including Walden Pond, Fresh Pond, and Spy Pond in Arlington, Massachusetts.
Jack and Jill Ice Cream Company was founded by Max Schwarz in 1929 in Philadelphia, Pennsylvania.
 Schwarz sold ice cream he carried through the streets of Philadelphia.
 In 1936, the company purchased its first ice cream truck for selling ice cream.
 In addition to trucks, the company also sells ice cream to restaurants and catering services, in stores, and in vending machines throughout Philadelphia, Baltimore, Maryland, Washington, D.C., Richmond, Norfolk, Virginia, and recently acquired Roanoke, Virginia.
Frederic Tudor (September 4, 1783 – February 6, 1864) was an American businessman and merchant.
 Known as Boston's "Ice King", he was the founder of the Tudor Ice Company and a pioneer of the international ice trade in the early 19th century.
 He made a fortune shipping ice cut from New England ponds to ports in the Caribbean, Europe, and as far away as India.
Crystal Lake is a 33 acre natural lake located in Newton, Massachusetts.
 Its shores, mostly lined with private homes, also host two small parks and a town beach and bath house.
 The name Crystal Lake was given to the pond by a nineteenth-century commercial ice harvester that sold ice cut from the pond in winter.
 It had previously been called Baptist Pond and used for baptisms by the Newton Center Baptist Church.
 The ice company felt that Crystal Lake was a better name for marketing purposes.
 In the colonial era it was called Wiswall's Pond.
Fresh Pond is a reservoir and park in Cambridge, Massachusetts.
 Prior to the Pond's use exclusively as a reservoir, its ice had been harvested by Boston's "Ice King", Frederic Tudor, and others, for shipment to North American cities and to tropical areas around the world.

Question: Who is the author born in 1817 that is associated with a pond from which Frederic Tudor sold ice?
Answer: Henry David Thoreau