Question: Frank Ellis Boynton worked at a tourist attraction that stands today as one of the most prominent remaining examples of what?

full_context: Document 1: Charles Lawrence Boynton: Charles Lawrence Boynton (February 7, 1864–September 16, 1943) was an American botanist active in the Southeastern United States, working at Biltmore Estate with Chauncey Beadle and his brother, Frank Ellis Boynton. The oak species "Quercus boyntonii" was named in honor of Charles Lawrence Boynton.
Document 2: Mar-a-Lago: Mar-a-Lago ( ) is a resort and National Historic Landmark in Palm Beach, Florida, built from 1924 to 1927 by cereal-company heiress and socialite Marjorie Merriweather Post. The 126-room, 62,500-square-foot house contains the Mar-a-Lago Club, a members-only club with guest rooms, a spa, and other hotel-style amenities. It is located
Document 3: Barnett Berry: Barnett Berry is founder, partner, and CEO of the Center for Teaching Quality, specializing in the development and implementation of innovative teaching practices. He is co-author of two books: "TEACHING 2030: What We Must Do for Our Students and Our Public Schools... Now and in the Future" (Teachers College Press, 2011) and "Teacherpreneurs: Innovative Teachers Who Lead but Don't Leave" (Jossey-Bass, 2013). He has written and contributed to more than 80 education journal articles and book chapters and maintains a regular blog on "Advancing the Teaching Profession" on the Center for Teaching Quality website and continues to work to advance the teaching profession, spanning from teacher recruitment and preparation to how teaching effectiveness is evaluated and rewarded.
Document 4: Biltmore Estate: Biltmore Estate is a large (6950.4 acre or 10.86 square miles) private estate and tourist attraction near Asheville, North Carolina. Biltmore House, the main residence, is a Châteauesque-style mansion built by George Washington Vanderbilt II between 1889 and 1895 and is the largest privately owned house in the United States, at 178926 sqft of floor space (135280 sqft of living area). Still owned by George Vanderbilt's descendants, it stands today as one of the most prominent remaining examples of the Gilded Age.
Document 5: Villa Lewaro: Villa Lewaro, formerly known as the Anne E. Poth Home, is a 34-room 20000 sqft mansion located at Fargo Lane and North Broadway (US 9) in Irvington, New York. It was the home of Madam C. J. Walker from 1918 to 1919. Walker was the first American female and first African-American female self-made millionaire, and "the world's most successful female entrepreneur of her time." The mansion is an Italianate villa house designed for Walker by Vertner Tandy, the first African-American architect registered in New York, and has been considered to be one of his greatest works. It was constructed during 1916–1918 at an estimated cost of $250,000, and was furnished lavishly. The name Villa Lewaro was coined by a distinguished visitor, Enrico Caruso, from the first two letters of each word in Lelia Walker Robinson, the name of Walker's daughter, who later went by the name of A'Lelia Walker.
Document 6: Frank Ellis Boynton: Frank Ellis Boynton (July 10, 1859 – December 10, 1942) was a self-taught American botanist active in the Southeastern United States. He worked at Biltmore Estate with his brother, Charles Lawrence Boynton, and Chauncey Beadle. Boynton's dewberry, Rubus boyntonii was named in honor of Frank Ellis Boynton.
Document 7: Berry Botanic Garden: Berry Botanic Garden was a botanical garden in southwest Portland, Oregon, in the United States. In addition to large collections of alpine plants, rhododendrons, primulas, lilies, it was known for its plant-conservation program and its large seed bank that protects rare or endangered plants of the Pacific Northwest. The seed bank, formally established in 1983, was thought to be the first in the U.S. that was devoted entirely to preserving rare native plants.
Document 8: Burgh Westra: Burgh Westra is a historic home located near Gloucester, Gloucester County, Virginia. Built between 1842-1851 on 3,500 acres, the estate's original design is a two and a half story brick dwelling in the Gothic Revival style. In addition to the main house, the property contains an original dairy, a rebuilt carriage house, guest cottage, gazebo built upon original sketches of Dr Taliaferro, north and south gardens modeled on the original house designs, and a kitchen vegetable garden. Additional dependency foundations of the kitchen, smoke, and ice houses on the property are currently under consideration for reconstruction. Still noticeable in the spring are native daffodils planted around the entrances to originally wooden servant houses on either side of the lane. Aspects of the original fruit and nut orchards are located next to the estate and near the remains of a barn burned by raiding union troops during the Civil War. The extended property contains the original farm managers house and working and fallow fields along the estate's nearly 2-mile long lane. Burgh Westra's floor plan is Design III in "Cottage Residences", by Andrew Jackson Downing. The name "Burgh Westra" comes from the Scottish phrase for "Village of the West", to symbolizing the cottage's location on the North River, Virginia.
Document 9: Francis Ernest Lloyd: Francis Ernest Lloyd (October 4, 1868 – October 10, 1947) was an American botanist, born in Manchester, England, and educated at Princeton University (A.B., 1891; A.M., 1895), in New Jersey, and in Europe at Munich and Bonn, in Germany. He was employed at various institutions of higher learning from 1891 onward. He served on the faculties of Williams College, Pacific University, Teachers College (Columbia University), Harvard Summer School, Alabama Polytechnic Institute (professor of botany, 1906-1912), and at McGill University, in Montreal, Canada after 1912. Professor Lloyd had worked as an investigator in the Desert Botanical Laboratory of the Carnegie Institution in 1906 and as cytologist of the Arizona Experiment Station in 1907. He edited "The Plant World" from 1905 to 1908, and was co-author of "The Teaching of Biology in the Secondary Schools" (1904; second edition, 1914). Professor Lloyd wrote:
Document 10: Boldt Castle: Boldt Castle is a major landmark and tourist attraction in the Thousand Islands region of the U.S. state of New York. Open to guests seasonally between mid May and mid October. It is located on Heart Island in the Saint Lawrence River. Heart Island is part of the Town of Alexandria, in Jefferson County. Originally a private mansion built by an American millionaire, George Boldt, it is today maintained by the Thousand Islands Bridge Authority as a tourist attraction.
Document 11: Jane Colden: Jane Colden (March 27, 1724 – March 10, 1766) was an American botanist, described as the "first botanist of her sex in her country" by Asa Gray in 1843. Although not acknowledged in botanical publications, she wrote a number of letters resulting in botanist John Ellis writing to Carl Linnaeus of her work applying the Linnaean system of plant identification to American flora, "she deserves to be celebrated". Contemporary scholarship maintains that she was the first female botanist working in America. She was regarded as a respected botanist by many prominent botanists such as: John Bartram, Peter Collinson, Alexander Garden, and Carl Linnaeus. Colden is most famous for her manuscript which remains titleless, in which she describes the flora of the New York area, and draws ink drawings of 340 different species of them.
Document 12: Manor and Cottages: Manor and Cottages is a historic resort complex and national historic district located at Asheville, Buncombe County, North Carolina. The complex encompassed 36 contributing buildings that were built starting in 1898. The main hotel, The Manor, was built starting in 1898-1899, and consists of a rambling group of interconnected wings with elements of the Colonial Revival, Shingle Style, and Tudor Revival styles. Wings were added to the original building in 1903 and 1913-1914. Located on the property are the contributing Club House (c. 1903) and a 19 guest cottages built between 1899 and 1920. The hotel was later converted for use as a retirement hotel for elderly persons with limited incomes.
Document 13: Deni Bown: Deni Bown is a writer from Norfolk, England. She is also a photographer and consultant and has a special interest in herbs and gardening. She has travelled to remote places worldwide for research in order to write many books on plants. Bown is a self-taught botanist, she had pursued a career in horticulture, an organic smallholding, growing orchids and herbs before taking up writing. In 1997, after working for several years as a council member, she became chairman of The Herb Society of America.
Document 14: David Boynton: David Boynton (1945–2007) was a leading expert on the natural history of the Hawaiian island of Kauai, especially on the Koke'e Forest and the Alakai Swamp and its wildlife. He was called "a voice for the Hawaiian wilderness," a "Guardian of the Koke'e Forest," and as an educator, "the window through which thousands of Hawai'i students learned about Hawaiian birds, plants, marine creatures, climate and much more." Boynton photographed a bird now believed extinct, the ʻ Ōʻ ōʻ āʻ ā ("Moho braccatus"). He recorded the mating call of the single male, whose mate presumably did not survive Hurricane Iwa at the end of 1982. The bird, probably the last of its species, was tending an empty nest.
Document 15: Glen Eyrie: Glen Eyrie is an English Tudor-style castle built in 1871 by General William Jackson Palmer, the founder of Colorado Springs. There are 17 guest rooms (12 Deluxe guest rooms and 5 premier guest rooms) in the castle, as well as 7 meeting rooms to include the Castle Great Hall (2200 square feet room in the castle that can hold up to 240 people) and 2 dining rooms in the castle (The Castle King James Hall has seating for 180 people and the Castle Music & Library rooms for seating for up to 58 people). This house was his and his wife's dream home and is near Colorado Springs in the northwest foothills just north of the Garden of the Gods rock formations (now a city park). After building a large carriage house, where the family lived for a time, Palmer and his wife Mary (Queen) Mellen built a 22-room frame house on the 800 acre estate. This house was remodeled in 1881 to include a tower and additional rooms, and made to resemble a stone castle in 1903, reminiscent of those native to England.
ground_truth: the Gilded Age