Question: David Frederick Wallace was the brother of a First Lady who was married to which President?

full_context: Document 1: Wallis Simpson: Wallis, Duchess of Windsor (born Bessie Wallis Warfield; also known by her married names of Wallis Spencer and Wallis Simpson; 19 June 1896 – 24 April 1986) was an American socialite whose intended marriage to King Edward VIII caused him to abdicate his throne.
Document 2: Susan Wallace: Susan Arnold Elston Wallace (December 25, 1830 – October 1, 1907) was an American author and poet from Crawfordsville, Indiana. In addition to writing travel articles for several American magazines and newspapers, Wallace published six books, five of which contain collected essays from her travels in the New Mexico Territory, Europe, and the Middle East in the 1880s: "The Land of the Pueblos" (1888), "The Storied Sea" (1883), "The Repose in Egypt: A Medley" (1888), "Along the Bosphorus, and Other Sketches" (1898), and "The City of the King: What the Child Jesus Saw and Heard" (1903). She was also the wife of Lew Wallace, a lawyer, American Civil War general, politician, and diplomat. Susan completed the manuscript of Lew Wallace's two-volume autobiography following his death in 1905, with the assistance of Mary Hannah Krout, another Crawfordsville author. Wallace died in Crawfordsville in 1907.
Document 3: Elizabeth Christ Trump: Elizabeth Christ Trump (born Elisabeth Christ; October 10, 1880 – June 6, 1966) was a German-born American businesswoman and is considered the matriarch of the Trump family. She married Frederick Trump in 1902. While raising their three children, the early death of her husband in 1918 required her to manage his properties in order to support her family. She founded the real estate development company Elizabeth Trump & Son with her son Fred. The company, now known as The Trump Organization, is currently owned by her grandson, Donald Trump, who is the 45th President of the United States. Her great-grandsons, Donald Trump Jr. and Eric Trump are running the family business as trustees during their father's presidency.
Document 4: Anna Harrison: Anna Tuthill Symmes Harrison (July 25, 1775 – February 25, 1864), wife of President William Henry Harrison and grandmother of President Benjamin Harrison, was nominally First Lady of the United States during her husband's one-month term in 1841, but she never entered the White House. At the age of 65 years during her husband's presidential term, she is the oldest woman ever to become First Lady, as well as having the distinction of holding the title for the shortest length of time, and the first person to be widowed while holding the title. She was the last First Lady to have been born in British America.
Document 5: Mary Todd Lincoln: Mary Ann Todd Lincoln (December 13, 1818 – July 16, 1882) was the wife of the 16th President of the United States, Abraham Lincoln, and was First Lady of the United States from 1861 to 1865. She dropped the name Ann after her younger sister, Ann Todd [Clark], was born, and did not use the name Todd after marrying.
Document 6: The Frederick Linsell House: The Frederick Linsell House of Fine Performing and Communication Arts is a landmark building on the campus of Wayne State University in Detroit, Michigan. Originally located on the corner of 2nd and Putnam, the two-story Georgian style home was constructed for Frederick and Rosa Linsell in 1904, by architect John C. Stahl at a cost of $9,000. The Linsells lived there for 10 years before selling it. After serving as a home for two more families, the building was bought by the Detroit Board of Education in the 1930s. In 1939 the building became the Women’s Study Building for the university. It was the only building of 16 on its block that survived the expansion of Wayne State’s campus in the mid 1900s. In 1956 the Board of Education donated the Linsell House to the university and it became the office for the School of Business, and later the Biology Department. In 1987 the house was restored and turned into the Dean’s Office for the College of Fine Performing and Communication Arts. The thirteen-room house is now located at 5104 Gullen Mall, in the middle of the Wayne State campus.
Document 7: Catalpa (Greenfield, Iowa): Catalpa, also known as Wallace Farm, is a historic farm located southeast of Greenfield, Iowa, United States. It is associated with Henry Cantwell Wallace, who owned and operated the influential agricultural publication "Wallace's Farmer", and served as U.S. Secretary of Agriculture (1921-1924). It is also associated with his son Henry Agard Wallace, who followed his father at the newspaper and served as U.S. Secretary of Agriculture (1933-1940), Vice President of the United States (1941-1945) and U.S. Secretary of Commerce (1945-1946). He was the Progressive Party candidate for president in 1948. This was one of several farms owned by the Rev. Henry Wallace, Henry Cantwell's father. It was acquried by the family in 1877, and it was operated by a tenant farmer until Henry Cantwell took it over. His son Henry Agard was born here in 1888. After five years Henry Cantwell returned to his studies at Iowa State University in Ames and the family left the farm at that time. It was listed on the National Register of Historic Places in 1974. The designation includes the farmhouse and outbuildings, which are modest frame structures with gable roofs, and a 200 acre plot of farmland. The house and barn were built before the Wallace's moved here in 1887.
Document 8: Wallace E. Pratt House: The Wallace E. Pratt House, also known as Ship On The Desert (sometimes hyphenated), was the residence of Wallace Pratt in what is now Guadalupe Mountains National Park in far western Texas. Pratt, a petroleum geologist for the Humble Oil & Refining Company, had previously built the Wallace Pratt Lodge in McKittrick Canyon a couple of miles to the north in the Guadalupe Mountains. Finding the cabin site to be remote and prone to being cut off by flooding, Pratt started construction of a new, modern residence on the east slope of the mountains. Work on the residence started in 1941. The house was designed by Long Island architect Newton Bevin, who lived for a time at the site with his wife, and built by contractor Ed Birdsall. Work was stopped by World War II, but resumed in 1945 and was completed the same year. In contrast to Pratt's rustic canyon cabin, the house, which Pratt named the Ship On The Desert, is an International Style house with horizontal lines and extensive glazing. Only 16 ft wide and 110 ft long, the house provides broad views to the east over the plans and the west to the mountains. The majority of the house is on a single level, with a "captain's bridge" over the dining room giving access to a rooftop terrace. A detached garage contained a guest bedroom. Apart from glass, the predominant material was local limestone in several shades.
Document 9: Fred Trump: Frederick Christ Trump Sr. (October 11, 1905 – June 25, 1999) was an American real estate developer and philanthropist, primarily in New York City, and father of Donald Trump, the 45th President of the United States, and Maryanne Trump Barry, a United States Court of Appeals judge.
Document 10: Bess Truman: Elizabeth Virginia "Bess" Truman (born Wallace; February 13, 1885 – October 18, 1982) was the wife of U.S. President Harry S. Truman and First Lady of the United States from 1945 to 1953.
Document 11: Harry S. Truman: Harry S. Truman (May 8, 1884December 26, 1972) was the 33rd President of the United States (1945–53), assuming that office upon the death of Franklin D. Roosevelt during the waning months of World War II. He is known for launching the Marshall Plan to rebuild the economy of Western Europe, for leading the Cold War against Soviet and Chinese communism by establishing the Truman Doctrine and NATO, and for intervening in the Korean War. In domestic affairs, he was a moderate Democrat whose liberal proposals were a continuation of Franklin Roosevelt's New Deal, but the conservative-dominated Congress blocked most of them. He used the veto power 180 times, more than any president since then, and saw 12 overridden by Congress; only Grover Cleveland and Franklin D. Roosevelt used the veto so often, and only Gerald Ford and Andrew Johnson saw so many veto overrides. He is also the only world leader to have ever used nuclear weapons in war, desegregated the U.S. Armed Forces, supported a newly independent Israel, and was a founder of the United Nations.
Document 12: Jesse Wallace: Jesse Rink Wallace (July 17, 1899 – January 29, 1961) was a United States Navy Captain and the 29th (27th unique) Governor of American Samoa. He served as governor for a period of only ten days from July 30, 1940 to August 8, 1940. Wallace was born in Beardstown, Illinois on July 17, 1899. On June 20, 1918, Wallace was appointed to the United States Naval Academy from Illinois. After his brief time as governor, Wallace became the chief of staff of the U.S. Naval Academy from 1946 to 1949. He later became chief of staff to the commandant of the Ninth Naval District. Wallace retired in 1952 and died on January 29, 1961; he was buried at the United States Naval Academy Cemetery.
Document 13: Harry S. Truman Historic District: The Harry S. Truman Historic District is a National Historic Landmark District encompassing sites closely associated with US President Harry S. Truman in Independence, Missouri. It includes the Truman Home at 219 North Delaware, Truman's home for much of his adult life and now a centerpiece of the Harry S. Truman National Historic Site, and the Truman Presidential Library. The district was listed on the National Register of Historic Places in 1971, and was designated a National Historic Landmark in 1974. When first listed, the district included only the two buildings and a corridor joining them. It was substantially enlarged in 2011 to include more sites and the environment in which Truman operated while living in Independence.
Document 14: Lady Bird Johnson: Claudia Alta "Lady Bird" Johnson (née Taylor; December 22, 1912 – July 11, 2007) was First Lady of the United States (1963–69), as the wife of the 36th President of the United States, Lyndon B. Johnson.
Document 15: David Frederick Wallace: David Frederick "Fred" Wallace (January 7, 1900 – September 30, 1957) was an architect and brother of First Lady of the United States Bess Truman.
ground_truth: Harry S. Truman