Cecilia Payne-Gaposchkin (1900-1979) was a British-born American astronomer and astrophysicist whose pioneering work revolutionized modern astrophysics. In 1925, she presented her groundbreaking doctoral thesis, in which she determined that stars were primarily composed of hydrogen and helium, a conclusion initially rejected by leading astrophysicists. Despite facing gender barriers in academia, Payne's perseverance and success opened doors for women in astronomy. She overcame the restrictions on women receiving degrees at the University of Cambridge and Harvard University, eventually earning her doctoral degree from Radcliffe College. Payne's remarkable achievements led to numerous accolades, including being the first woman appointed as a professor and department chair at Harvard, as well as the first recipient of the American Astronomical Society's Annie Jump Cannon Award in Astronomy. Her influential work resulted in several published books and significantly impacted the field of astrophysics. Payne's legacy continues to inspire and pave the way for women in science, marking her as a trailblazer in the field of astronomy.

Cecilia Hart (February 19, 1948 – October 16, 2016), also known as Ceci Jones, was a talented American actress best known for her role as Stacey Erickson in the CBS police drama Paris, alongside her husband James Earl Jones. Born in Cheyenne, Wyoming, Hart pursued her acting career in New York City, where she achieved critical acclaim for her performances on Broadway. Her notable stage appearances include Tom Stoppard's play Dirty Linen and New-Found-Land, for which she won the 1977 Theatre World Award, as well as The Heiress, Design for Living, and Othello. In her personal life, Hart was married to actor Bruce Weitz from 1971 to 1980 and then to James Earl Jones from 1982 until her passing. The couple resided in Pawling, New York, and had one child together. Tragically, Hart succumbed to ovarian cancer at the age of 68. Her legacy lives on through her impressive body of work and her enduring impact on the entertainment industry. For more information about her life and career, you can visit her profiles on IMDb and the Internet Broadway Database.

Cecilia Nina Bowes-Lyon, Countess of Strathmore and Kinghorne, was the mother of Queen Elizabeth The Queen Mother and grandmother of Queen Elizabeth II. Born in 1862, she married Claude Bowes-Lyon, Lord Glamis, and became the Countess of Strathmore and Kinghorne. Known for her exceptional piano skills, she was a gracious hostess and played an active role in running the family estates, including Glamis Castle and St Paul's Walden Bury. A devoutly religious woman, she enjoyed a quiet family life and had a passion for gardening and embroidery. During World War I, she dedicated herself to serving as a convalescent hospital for the wounded. Lady Strathmore passed away in 1938 at the age of 75, leaving behind a legacy of grace, hospitality, and dedication to her family and community. She was laid to rest at Glamis Castle. Her life and contributions remain an indelible part of British history.

Cecilia Elena Rouse, born on December 18, 1963, is an esteemed American economist and the President of the Brookings Institution. Notably, she marked history as the first Black American to serve as the 30th Chair of the Council of Economic Advisers. Rouse's academic journey includes a Bachelor of Arts in Economics and a Ph.D. in Economics, both from Harvard University. Her outstanding career spans various roles, including serving as the dean of the Princeton School of Public and International Affairs at Princeton University. Rouse's expertise in labor economics and the economics of education has contributed significantly to her field. She has also held influential positions in prestigious organizations such as the National Academy of Education and the National Bureau of Economic Research.Rouse's exceptional contributions to economic literature include influential publications like "Orchestrating Impartiality: The Impact of 'Blind' Auditions on Female Musicians" and "Private school vouchers and student achievement: An evaluation of the Milwaukee Parental Choice Program." Her remarkable achievements and dedication to her field have solidified her as a respected figure in the economics community. With her extensive knowledge and experience, Rouse continues to be a trailblazer and an influential leader in the field of economics.

María Cecilia Morel Montes, born on 14 January 1954, is known as the former First Lady of Chile as the widow of the former President of Chile, Sebastián Piñera. She played a significant role as the Director of the Sociocultural Area of the Presidency during her husband's terms as President. Morel is the fourth of seven children born to Eduardo Morel Chaigneau and Paulina Montes Brunet. She has been actively involved in social work and holds a degree in family and human relations from Universidad Mayor. Morel also co-founded "La Casa de la Juventud" in 1989, aimed at educating young people with growth and personal development workshops. As the First Lady, she chaired several Chilean organizations, including the Integra Foundation, PRODEMU, and the Family Foundation. She was also involved in international engagements, accompanying the President on a state visit to Spain. Morel's compassion was evident during the 2010 Copiapó mining accident, where she and Piñera actively participated in the rescue operation. Her notable honors include the Dame Grand Cross of the Order of Isabella the Catholic from Spain and the Grand Cross of the Royal Norwegian Order of Merit.