Question: What is the name of this American botanist and inventor born in the 1860s, whose birthplace was Diamond, Missouri?

full_context: Document 1: Amarillo Starlight: The Amarillo Starlight is the largest diamond found by a park visitor in the Crater of Diamonds State Park in Arkansas since 1972, when it was established as a state park. The Amarillo Starlight was found by W. W. Johnson of Amarillo, Texas in 1975 while he was vacationing at the park with his family. When unearthed, it was a 16.37 carat white diamond, but it has since been cut into a 7.54 carat marquise shape. Its value has been estimated between $150,000 and $175,000.
Document 2: Carver High School (New Orleans): George Washington Carver Senior High School was a high school in the Desire Area, in the Ninth Ward of New Orleans. It was previously operated by New Orleans Public Schools, then Recovery School District. It is currently home to George Washington Carver Collegiate Academy (CCA) and George Washington Carver Preparatory Academy (CPA), two charter high schools operated by Collegiate Academies.
Document 3: Jones Diamond: The “Jones Diamond,” also known as the “Punch Jones Diamond,” "The Grover Jones Diamond," or "The Horseshoe Diamond," was a 34.48 carat (6.896 g) alluvial diamond found in Peterstown, West Virginia by members of the Jones family. It remains the largest alluvial diamond ever discovered in North America.
Document 4: Columbia, Missouri: Columbia is a city in the U.S. state of Missouri and the county seat of Boone County. Founded in 1821, it is home to the University of Missouri and is the principal city of the Columbia Metropolitan Area. It is Missouri's fourth most-populous city, with an estimated population of 120,612 in 2016. As a midwestern college town, the city has a reputation for progressive politics, public art, and powerful journalism. The tripartite establishment of Stephens College (1833), the University of Missouri (1839), and Columbia College (1851) has ever since made the city a center of education, culture, and athletic competition; these three schools surround the city's central business district to the east, south, and north. At the center of Downtown is 8th Street, also known as the Avenue of the Columns, which connects Francis Quadrangle and Jesse Hall to the Boone County Courthouse and the City Hall. Originally an agricultural town, the cultivation of the mind is Columbia's chief economic concern today. Never a major center of manufacturing, the city also depends on healthcare, insurance, and technology businesses. Several companies, such as Shelter Insurance, Carfax, and Slackers CDs and Games, were founded in the city. Cultural institutions include the State Historical Society of Missouri, the Museum of Art and Archaeology, and the annual True/False Film Festival. The Missouri Tigers, the state's only major college athletic program, play football at Faurot Field and basketball at Mizzou Arena as members of the Southeastern Conference (SEC).
Document 5: Diamond, Missouri: Diamond is a city in Newton County, Missouri, United States near Joplin, Missouri. The population was 902 at the 2010 census. It is part of the Joplin, Missouri, Metropolitan Statistical Area. Diamond is primarily renowned as the birthplace of George Washington Carver.
Document 6: Springfield, Missouri: Springfield is the third-largest city in the state of Missouri and the county seat of Greene County. As of the 2010 census, its population was 159,498. As of 2016, the Census Bureau estimated its population at 167,319. It is one of the two principal cities of the Springfield-Branson Metropolitan Area, which has a population of 541,991 and includes the counties of Christian, Dallas, Greene, Polk, Webster, Stone and Taney. Springfield's nickname is "Queen City of the Ozarks" and it is known as the "Birthplace of Route 66". It is home to several universities, including Missouri State University, Drury University, and Evangel University.
Document 7: Hamilton, Missouri: Hamilton is a city in Caldwell County, Missouri, United States. The population was 1,809 at the 2010 census. It is known as the hometown of James Cash Penney, who built a large apparel-related business, J. C. Penney, and the hometown of Jenny Doan, who has built a large quilting-related business, Missouri Star Quilt Co.
Document 8: Tuskegee University: Tuskegee University is a private, historically black university (HBCU) located in Tuskegee, Alabama, United States. It was established by Booker T. Washington. The campus is designated as the Tuskegee Institute National Historic Site by the National Park Service and is the only one in the U.S. to have this designation. The university was home to scientist George Washington Carver and to World War II's Tuskegee Airmen.
Document 9: George Devol: George Charles Devol Jr. (February 20, 1912 – August 11, 2011) was an American inventor known for developing Unimate, the first material handling robot employed in industrial production work.
Document 10: George Fruits: George Fruits (January 2, 1779 (claimed 1762) – August 6, 1876) claimed to be the last known surviving soldier of the American Revolutionary War. Subsequent research indicates that he was possibly confused somewhat with the identity of his father. The George Fruits of this article was born in Baltimore, Maryland; his parents were George and Margaret Fruits, young immigrants from Germany. His father was known as "Flag Bearer George" during the Revolutionary War and purportedly fought in numerous important battles. Some of the exploits attributed to Fruits may have been performed by his father.
Document 11: Uncle Sam (diamond): Uncle Sam is the nickname for the largest diamond ever discovered in the United States. It was found in 1924 in Murfreesboro, Arkansas at the Prairie Creek pipe mine, which later became known as the Crater of Diamonds State Park. The diamond was named "Uncle Sam" after the nickname of its finder, Wesley Oley Basham, a worker at the Arkansas Diamond Corporation.
Document 12: Benjamin Banneker: Benjamin Banneker (November 9, 1731October 9, 1806) was a free African American almanac author, surveyor, naturalist, and farmer. Born in Baltimore County, Maryland, to a free African American woman and a former slave, Banneker had little formal education and was largely self-taught. He is known for being part of a group led by Major Andrew Ellicott that surveyed the borders of the original District of Columbia, the federal capital district of the United States.
Document 13: George Washington Carver: George Washington Carver (1860s – January 5, 1943), was an American botanist and inventor. The exact day and year of his birth are unknown; he was born into slavery in Missouri, either in 1861, or January 1864.
Document 14: Jimmy Carter: James Earl Carter Jr. (born October 1, 1924) is an American politician who served as the 39th President of the United States from 1977 to 1981. A member of the Democratic Party, he also served as the Governor of Georgia prior to his election as president. Carter has remained active in public life during his post-presidency, and in 2002 he was awarded the Nobel Peace Prize for his work with the Carter Center.
Document 15: Onesimus (Boston slave): Onesimus (late 1600s–1700s) was an African-born man held as a slave by Puritan minister Cotton Mather, who helped mitigate the impact of a smallpox outbreak in Boston by introducing Mather to the principle of inoculation. In a 2016 "Boston Magazine" survey, he was declared one of the "Best Bostonians of All Time".
ground_truth: George Washington Carver