Dr. Yvette Fay Francis-McBarnette, a longtime Oak Bluffs summer resident known for her groundbreaking work in treating sickle cell anemia, died peacefully in Alexandria, Va. on the afternoon of March 28, surrounded by her loved ones. She was just weeks from her 90th birthday.

Born in Jamaica in 1926 to Clarence and Sarah Francis, Dr. Francis immigrated to the United States as a young child with her parents and became an American citizen. She grew up in Harlem, New York city, where she attended St. Philip’s Episcopal Church. There she married Olvin McBarnette, her husband of 60 years, and together they raised their six children in Queens.

In the early 1970s, she purchased her summer home in Oak Bluffs, where she vacationed with her family every summer. Her children and grandchildren continue to vacation annually in Oak Bluffs.

Dr. Francis excelled in her educational pursuits. She attended Hunter College in New York city, graduating magna cum laude at just 17 years old. She then earned a master’s degree in chemistry, graduating with honors from Columbia University. Next she entered the Yale School of Medicine as the second African American woman ever accepted into the program. She earned her doctorate in 1950.

Dr. Francis was a pediatrician with a clinical specialty in hematology. Her focus was sickle cell anemia, an inherited blood disorder affecting primarily people of African and Mediterranean descent. In 1966, she launched the Foundation for Research and Education in Sickle Cell Disease to promote testing, research, public education and patient services. Dr. Francis’s work came to influence national policy when she was invited by the Nixon administration to be a member of an advisory committee on sickle cell anemia. Soon after, the National Sickle Cell Anemia Control Act of May 1972 was signed.

Dr. Francis owned and operated the St. Albans Family Medical Center in Queens and she was the director of the Sickle Cell Clinic in Jamaica Hospital, also in Queens. She received numerous awards and accolades for her service to her patients and the community.

Known as Fay to her friends and family, she enjoyed singing, playing the piano, and competing in bridge tournaments at her summer getaway on Martha’s Vineyard. She was a lifelong learner who in her mid-70s took philosophy classes in the graduate program at Hunter College. In 2003, she and her husband moved from New York to Virginia to be near their grandchildren. She was deeply religious. and enjoyed Bible study and singing in the choir at the Episcopal chapel of Goodwin House, the retirement community where she lived with her husband.

Dr. Francis leaves behind to cherish her memory her loving husband Olvin McBarnette; her children Bruce, Camilla, Yvette, Elayne Sara, Ellen and Andrea; her grandchildren Nettie McMiller, and Baily and Taylor Moore; her brother Mac Francis; and numerous nephews, nieces, extended family and friends.

Her memorial service will be held on April 30 in Alexandria, Va.