Marie Maynard Daly (April 16, 1921 – October 28, 2003) was an American biochemist. She was the inaugural African American woman in the U.S. to attain a PhD in chemistry and the first African American to be awarded a PhD from Columbia University. Her investigations aided scientists in enhancing their comprehension of proteins within cell nuclei, the link between cholesterol and heart disease, as well as how muscle cells utilize energy.
Daly’s contributions were instrumental in establishing the groundwork for our current knowledge of hypertension, atherosclerosis, and protein synthesis. Additionally, she guided minority students, advocated for diversity in scientific disciplines, and created scholarships for aspiring Black scientists in chemistry and physics.
Here are several significant details about Marie Maynard Daly:
| Full Name | Marie Maynard Daly (later Marie Maynard Daly Clark after marriage) |
| Date of Birth | April 16, 1921 |
| Date of Death | October 28, 2003 |
| Age at Death | 82 years |
| Birthplace | Corona, Queens, New York City, United States |
| Education | B.A. Chemistry (Queens College, 1942, magna cum laude); M.A. Chemistry (New York University, 1943); Ph.D. Chemistry (Columbia University, 1947) |
| Major Research Areas | Histones & nuclear proteins; protein synthesis; cholesterol & hypertension; creatine uptake in muscle cells |
| Key Legacy | First African American woman Ph.D. in chemistry in the U.S.; scholarship fund at Queens College; namesake elementary school in Queens |
| Awards & Honors | Recognized by National Technical Association (1999); annual tribute lecture at Einstein College; school named in her honor (2016) |
Marie Maynard Daly: Biography
Marie Maynard Daly was born on April 16, 1921, in Corona, Queens, New York City, to Helen Page Daly and Ivan C. Daly. Her father emigrated from the British West Indies and served as a postal clerk. He had once enrolled at Cornell University, aspiring to be a chemist, but had to discontinue due to financial constraints. This motivated Marie to pursue chemistry in his memory. Her mother, Helen, hailed from Washington, D.C., and Marie frequently visited her grandparents there, spending countless hours poring over scientific literature from her grandfather’s library. A book that profoundly influenced her was Paul de Kruif’s The Microbe Hunters, which ignited her enduring passion for science.
Daly attended Hunter College High School, a prestigious public institution for girls in New York City, where her instructors nurtured her chemistry interests. Subsequently, she enrolled in Queens College in Flushing, New York, which had no tuition, and resided at home to economize. She graduated magna cum laude in 1942 with a B.A. in chemistry and was honored as a Queens College Scholar, an accolade awarded to the top 2.5% of the graduating cohort.
During World War II, labor deficits created additional openings for women and minorities in science. Daly received fellowships that enabled her to further her education. She served as a lab assistant at Queens College while obtaining her master’s degree in chemistry from New York University in 1943. She then commenced her PhD at Columbia University under the guidance of biochemist Mary Letitia Caldwell. Her dissertation, “A Study of the Products Formed By the Action of Pancreatic Amylase on Corn Starch,” was completed in 1947. This achievement made her the first African American woman to secure a PhD in chemistry in the U.S. and the first African American to obtain any PhD from Columbia University.
Post-doctorate, Daly instructed physical science at Howard University (1947–1948) while conducting research alongside physicist Herman Branson. In 1948, she earned a postdoctoral fellowship from the American Cancer Society and joined Alfred E. Mirsky’s team at the Rockefeller Institute (now Rockefeller University), initiating seven years of groundbreaking research on the cell nucleus and protein synthesis. In 1955, she transitioned to Columbia University’s College of Physicians and Surgeons, where she collaborated with Quentin B. Deming on arterial metabolism and hypertension. By 1960, she ascended to the role of assistant professor of biochemistry and medicine at the Albert Einstein College of Medicine at Yeshiva University, remaining there until her retirement in 1986. She attained a promotion to associate professor in 1971.
Daly was passionately committed to enhancing minority representation in science. She played a vital role in the Martin Luther King–Robert F. Kennedy program at Einstein College, which prepared Black students for advanced studies and professional schools. In 1975, she was among 30 minority women scientists invited to a crucial American Association for the Advancement of Science conference. This gathering resulted in the influential report The Double Bind: The Price of Being a Minority Woman in Science (1976), which outlined the difficulties and potential remedies for attracting and retaining minority women in scientific fields.
Daly was a member of the American Association for the Advancement of Science and the American Cancer Society, a career scientist affiliated with the Health Research Council of the City of New York, and served on the board of governors of the New York Academy of Sciences for two years. Upon her retirement in 1986, she established a scholarship fund at Queens College in 1988 in memory of her father to assist African American students majoring in chemistry or physics. In 1999, she was recognized as one of the top 50 women in science, engineering, and technology by the National Technical Association.
Marie Maynard Daly passed away on October 28, 2003, at the age of 82. She was married (taking the name Marie Maynard Daly Clark), but her spouse preceded her in death, and they had no children. She led a private life centered on research, education, and guiding others.
Update
As of January 2026, Marie Maynard Daly’s legacy is still commemorated in STEM education and diversity initiatives:
- The Dr. Marie M. Daly Academy of Excellence (P.S. 360Q) in Queens, New York, remains operational and active as an elementary school named in her honor since 2016.
- The annual Marie M. Daly Memorial Celebration lecture series at Albert Einstein College of Medicine persists, featuring guest speakers discussing diversity and the contributions of minorities to science.
- Her narrative is frequently incorporated into Black History Month observances, women-in-STEM exhibits, and educational curricula across the U.S.
- Her scholarship fund at Queens College continues to support minority students in chemistry and physics.
Life
Marie Maynard Daly grew up in Corona, Queens, in a humble yet intellectually enriching environment. Her father’s aspiration of becoming a chemist, which he could not realize, inspired her career trajectory. She often reminisced about reading scientific works in her grandfather’s library in Washington, D.C., as a pivotal experience. Daly was reserved and focused, never pursuing public fame.
She wed later in life, adopting the surname Clark; however, her husband passed away prior to her, and they had no offspring. She lived modestly in New York, dedicating herself to research, teaching, and mentoring minority students. Daly retired in 1986 and passed away in 2003 at age 82 following a private ailment. Her journey reflected resilience, scientific dedication, and a deep commitment to aiding others in entering STEM careers.
Career
Marie Maynard Daly’s career encompassed education, research, and advocacy:
- 1942–1943: Laboratory assistant at Queens College while pursuing M.A. at NYU.
- 1947–1948: Physical science educator at Howard
- University; investigated under Herman Branson.
- 1948–1955: Postdoctoral scholar at Rockefeller Institute alongside Alfred E. Mirsky; examined nuclear proteins and protein production.
- 1955–1960: Researcher at Columbia University’s College of Physicians and Surgeons with Quentin B. Deming; explored cholesterol, hypertension, and arterial metabolism.
- 1960–1986: Faculty member at Albert Einstein College of Medicine (initially assistant professor, then associate professor); continued investigations on hypertension, creatine absorption, and cardiac health.
- Guided minority students via the Martin Luther King–Robert F. Kennedy initiative.
- 1975: Engaged in AAAS conference regarding minority women in STEM; contributed to The Double Bind report.
Her investigations resulted in significant breakthroughs concerning histones, protein production, the manner in which cholesterol obstructs arteries, the effects of hypertension on blood vessels, and how muscle cells absorb creatine.
Awards & Facts
Marie Maynard Daly garnered numerous accolades throughout her lifetime and beyond:
- Queens College Scholar (top 2.5% of graduating cohort, 1942).
- American Cancer Society postdoctoral grant (1948).
- Career scientist recognition by the Health Research Council of the City of New York.
- Fellow of the American Association for the Advancement of Science and the American Cancer Society.
- Recognized as one of the top 50 women in science, engineering, and technology by the National Technical Association (1999).
- Scholarship fund established in her name at Queens College (initiated 1988).
- P.S. 360Q elementary school in Queens was renamed Dr. Marie M. Daly Academy of Excellence (2016).
- Annual Marie M. Daly Memorial Celebration lecture series at Albert Einstein College of Medicine.
Key facts:
- First African American woman to achieve a PhD in chemistry in the United States.
- First African American to obtain a PhD from Columbia University (1947).
- Research shaped understanding of heart disease, hypertension, and protein production.
- Set up a scholarship at Queens College to honor her father and assist minority students in chemistry/physics.
- Lived a private existence; married (surname changed to Clark); no offspring.
- Passed away on October 28, 2003, at the age of 82.
