Question: what kind of business was Elmer Lucille Allen the first African-American Chemist at?

Context articles: Alma Levant Hayden
Loney Gordon
Antoinette Rodez Schiesler
Reatha King
Elmer Lucille Allen
Brown-Forman
Willa Brown
Marron William Fort
John E. Hodge
Lloyd Sealy

Alma Levant Hayden (March 30, 1927 – August 2, 1967) was an American chemist, and one of the first African-American women to gain a scientist position at a science agency in Washington, D.C.
 She joined the National Institutes of Health (NIH) in the 1950s.
 Hayden graduated from Howard University with a master's degree in chemistry, and became an expert in spectrophotometry, the measurement of how substances absorb light.
 She published work on infrared and other techniques for analyzing chemicals in a range of journals.
 Hayden was appointed Chief of the Spectrophotometer Research Branch in the Division of Pharmaceutical Chemistry at the U.S. Food and Drug Administration (FDA) in 1963, and may have been the first African-American scientist at the FDA.
 Hayden came to national attention in 1963 when she led the team that exposed the common substance in Krebiozen, a long-controversial alternative and expensive drug promoted as anti-cancer.
 Hayden was married to fellow research chemist Alonzo Hayden, and had two children.
 She died in 1967.
Loney Clinton Gordon (1915–1999) was an African-American chemist and laboratory researcher who assisted doctors Pearl Kendrick and Grace Eldering with bacteriological virulence research leading to the creation of the pertussis vaccine.
Antoinette Rodez Schiesler (December 13, 1934 – April 8, 1996) was an African-American chemist and Director of Research at Villanova University.
 She was also a former Roman Catholic nun and Episcopal priest.
Reatha Clark King (born April 11, 1938) is an African-American chemist, the former Vice President of the General Mills Corporation; and the former President, Executive Director, and Chairman of the Board of Trustees of the General Mills Foundation, the philanthropic foundation of General Mills, Inc.
Elmer Lucille Allen (born in Louisville, Kentucky, 1931) is a ceramic artist and chemist who graduated from Nazareth College (now Spalding University) in 1953.
 She became the first African-American chemist at Brown-Forman in 1966.
The Brown-Forman Corporation is one of the largest American-owned companies in the spirits and wine business.
 Based in Louisville, Kentucky, it manufactures several well known brands throughout the world, including Jack Daniel's, Early Times, Old Forester, Woodford Reserve, Canadian Mist, GlenDronach, BenRiach, Glenglassaugh, Finlandia, Herradura, Korbel, and Chambord.
 Brown-Forman formerly owned Southern Comfort and Tuaca before selling them off in 2016.
Willa Beatrice Brown (January 22, 1906 – July 18, 1992) was an American aviator, lobbyist, teacher, and civil rights activist.
 She was the first African-American woman to earn her pilot's license in the United States, the first African-American woman to run for the United States Congress, the first African-American officer in the US Civil Air Patrol, and the first woman in the United States to have both a pilot's license and a mechanic's license.
 A lifelong advocate for gender and racial equality in flight and in the military, Brown not only lobbied the U.S. government to integrate the U.S. Army Air Corp and include African Americans in the Civilian Pilot Training Program (CPTP), but also co-founded the Cornelius Coffey School of Aeronautics with Cornelius Coffey, which was the first private flight training academy in the United States owned and operated by African Americans.
 She trained hundreds of pilots, several of whom would go on to become Tuskegee Airmen.
Marron William Fort (1906-1961) was a chemist who was the first African-American to receive a Ph.D. in any engineering field.
 He also was the first African-American to earn a doctorate from the Massachusetts Institute of Technology, graduating with a Ph.D. in chemical engineering in 1933.
John Edward Hodge (October 12, 1914 – January 3, 1996) was an African-American chemist, born in Kansas City, Kansas.
Lloyd George Sealy (January 4, 1917 – January 4, 1985) was the NYPD's first African-American officer to graduate from the FBI National Academy and the first African-American officer in the NYPD to make rank as the commander of a police station in 1963 serving the 28th precinct in Harlem.
 He was also the first African-American officer to serve as Assistant Chief Inspector and Borough Commander serving the Patrol Borough of Brooklyn North (which included historical African-American communities such as Bedford-Stuyvesant, Brownsville, Weeksville, Clinton Hill, Fort Greene, and East New York, among others) in 1966.