Roland Maurice Jefferson (September 3, 1923 – November 27, 2020) was an American botanist who was the first African-American botanist to be employed by the United States National Arboretum, where he worked from 1956 to 1987. According to The Washington…
Roland A. Pattillo (June 12, 1933 – May 3, 2023) was an American medical doctor and researcher, who was noted for his involvement with the HeLa line of cells and his connection to the family of Henrietta Lacks, from whom the cells were cultured.
Ron Buckmire (born 1968) is a Grenadian-born mathematician, former chess champion of Barbados and LGBT activist. He is the past chair of the Occidental College Department of Mathematics. Starting in August 2018, he served as the Associate Dean for…
Ron Hines (born 1940) was the first black Ivy League-educated auto racing engineer on America's road racing circuits. He was an engineer for Black American Racers, Inc. (BAR), the first black auto racing team to attain national sponsorship in America, in…
Ron Robinson (born 1965) is an American cosmetic chemist and researcher who is the founder of the skincare brand BeautyStat and the formulator of the teen skincare label Yes Day. He also helped launch Hailey Bieber's skincare line, Rhode, which was later…
Ronald W. Walters (July 20, 1938 – September 10, 2010) was an American author, speaker and scholar of African-American politics. He was director of the African American Leadership Institute and Scholar Practitioner Program, Distinguished Leadership Scholar…
Ronald Chisom is an African American author, civil rights activist and community organizer who was involved in fighting for justice and equality for marginalized communities in the United States. He is a co-founder of People's Institute for Survival and…
Ronald Elbert Mickens (born February 7, 1943) is an American physicist and mathematician who is the Fuller E. Callaway Professor of Physics at Clark Atlanta University. His research focuses on nonlinear dynamics and mathematical modeling, including…
Ronald Lawrence Mallett (born March 30, 1945) is an American theoretical physicist, academic and author. He has been a faculty member of the University of Connecticut since 1975 and is best known for his position on the possibility of time travel.
Ronald V. Myers, Sr. (born February 29, 1956 – September 7, 2018) was an American physician, Baptist minister, musician, and civil rights activist. He was the founder and chairman of several organizations active in the modern movement to promote the…
Ronke Mojoyinola Olabisi (born 26 June 1976) is an associate professor of biomedical engineering at University of California, Irvine. She works on speciality of bone and human tissue. She is working with Mae Jemison on 100 Year Starship, an…
Rory Reid (born 12 October 1979) is a British television presenter and journalist. He specialises in motoring and technology and currently works for Autotrader UK. He is best known for hosting Top Gear, Extra Gear, Gadget Geeks and several web series.…
Rosa Lee Franklin (née Gourdine; born April 4, 1927) is an American politician and nurse who served as a member of the Washington State Senate from 1993 to 2011, representing the 29th District. She also served as the President Pro Tempore for the Senate.
Rosalie A. Reed (born 1945) is an American veterinarian. In 1973, Reed became the first woman to work as a veterinarian at the Los Angeles Zoo. She was also the first African American to become a veterinarian at a major United States zoo.
Rosalind Cash (December 31, 1938 – October 31, 1995) was an American actress. Her best-known film role is in the 1971 science-fiction film The Omega Man. Cash also had another notable role as Mary Mae Ward in ABC's General Hospital, a role she portrayed…
Rosalyn P. Scott (born 1950) is an American thoracic surgeon known for her work in education and for being the first African-American woman to become a thoracic surgeon.
Roscoe Conkling Giles (May 6, 1890 – February 9, 1970) was an American medical doctor and surgeon. He was the first African American to earn a degree from Cornell University Medical College. Giles worked as a surgeon at Provident Hospital in Chicago, and…
Roscoe C. Giles, III is an American physicist and computer engineer. He was the deputy director of Boston University's Center for Computational Science. He is also a professor of computer and electrical engineering at Boston University College of…
Rose Delores Gibbs (born 1946) was the first female African American doctor to graduate from the Medical University of South Carolina, and the first black woman to serve as the chief medical officer in the Peace Corps.
Roselyn Elaine Williams is an American mathematician who is an associate professor and former chair of the mathematics department at Florida Agricultural and Mechanical University. Her decades long involvement in the National Association of Mathematicians…
Roselyn Elizabeth Payne Epps (née Payne; December 11, 1930 – September 29, 2014) was an American pediatrician and public health physician. She was the first African American president of the American Medical Women's Association and wrote more than 90…
Rosemarie Wesson is the Associate Vice Chancellor and University Vice Provost for Research at The City University of New York. She was the first African-American woman to receive a PhD in chemical engineering from the University of Michigan. She has worked…
Rosie Lee Tompkins (1936–2006) is the art pseudonym of Effie Mae Martin Howard, a widely acclaimed African-American quiltmaker and fiber artist of Richmond, California. The Los Angeles Times described her work as "stunning, improvisational quilts that fuse…