<P> From 1935 to 1937, Carver participated in the USDA Disease Survey . Carver had specialized in plant diseases and mycology for his master's degree . </P> <P> In 1937, Carver attended two chemurgy conferences, an emerging field in the 1930s, during the Great Depression and the Dust Bowl, concerned with developing new products from crops . He was invited by Henry Ford to speak at the conference held in Dearborn, Michigan, and they developed a friendship . That year Carver's health declined, and Ford later installed an elevator at the Tuskegee dormitory where Carver lived, so that the elderly man would not have to climb stairs . </P> <P> Carver had been frugal in his life, and in his seventies he established a legacy by creating a museum of his work, as well as the George Washington Carver Foundation at Tuskegee in 1938 to continue agricultural research . He donated nearly US $60,000 (equivalent to $1,043,121 in 2017) in his savings to create the foundation . </P> <P> Carver never married . At age forty, he began a courtship with Sarah L. Hunt, an elementary school teacher and the sister - in - law of Warren Logan, Treasurer of Tuskegee Institute . This lasted three years until she took a teaching job in California . In her 2015 biography, Christina Vella reviews his relationships and suggests that Carver was bisexual and constrained by mores of his historic period . </P>

Who is credited with developing or inventing about 300 uses or products using peanuts