84 is a long, full life. Thinking of Maya and their daughters Leigh and Tanya right now, that's a lot of family to hold this.
Their story
Felton James "Tony" Earls III was born in New Orleans on 20 January 1942, the oldest of four children of Ethelyn and Felton James Earls II. In 1953 the family moved to Memphis, where he graduated from Booker T. Washington High School. He earned a Bachelor of Science in chemistry…
Felton James "Tony" Earls III was born in New Orleans on 20 January 1942, the oldest of four children of Ethelyn and Felton James Earls II. In 1953 the family moved to Memphis, where he graduated from Booker T. Washington High School. He earned a Bachelor of Science in chemistry at Howard University in 1963 and his M.D. there in 1967, then began postgraduate training in neurophysiology at the University of Wisconsin in Madison.
In Madison he met neurophysiologist Mary "Maya" Carlson. They married in Boston in 1971 and built a decades-long personal and scientific partnership. A decisive turn came in April 1968. After a marathon laboratory session mapping a cat's auditory cortex, Earls learned that Martin Luther King Jr. had been assassinated. Having taken part in King-led rallies, he left the sealed laboratory path. "I realized that I couldn't have a career in neurophysiology. I couldn't remain in a laboratory," he later told The New York Times. "King's death made me see that I had to work for society. My laboratory had to be the community, and I had to work with children because they represent our best hope."
He trained as a pediatrician in East Harlem, as a child psychiatrist at Massachusetts General Hospital, and in public health at the London School of Hygiene. He joined Harvard Medical School's faculty in 1974. From 1981 to 1989 he was Professor of Child Psychiatry and Director of the Division of Child Psychiatry at Washington University School of Medicine in St. Louis, then returned to Harvard as Professor of Social Medicine, Professor of Human Behavior and Development at the Harvard School of Public Health, and Blanche F. Ittleson Professor of Child Psychiatry. He later became professor emeritus at both Harvard Medical School and the Harvard T.H. Chan School of Public Health.
Earls's signature scientific achievement was leadership of the Project on Human Development in Chicago Neighborhoods, a multi-year, multi-funder study that followed thousands of people across hundreds of Chicago neighborhoods. With Robert J. Sampson, Stephen W. Raudenbush, Jeanne Brooks-Gunn and others, the team combined resident surveys, systematic social observation (including videotaping blocks from a slow-moving SUV), and crime records. Their landmark 1997 Science paper, "Neighborhoods and Violent Crime: A Multilevel Study of Collective Efficacy," argued that neighbors' shared trust and willingness to intervene for the common good, especially for children, predicted lower violence even after accounting for poverty and other structural factors. The work challenged the popular "broken windows" framing of disorder as the primary lever of crime control and helped redirect policy attention toward community capacity.
National Institute of Justice leaders and criminologists called the Chicago project among the most consequential investments in the modern study of crime. Earls insisted the research was public health as much as criminology: drug use, schooling, birth outcomes, asthma, and sexual health sat alongside violence as outcomes of neighborhood life. "If genetics plays a role, it's got to be a minor role, because the community effects are very robust," he told the Times in 2004.
With Maya Carlson he extended the child-as-citizen agenda internationally, including work in Romania, Costa Rica, Brazil, and Tanzania on youth agency amid HIV/AIDS and other crises. Their book Voice, Choice, and Action: The Potential of Young Citizens to Heal Democracy argued that adolescents can strengthen democratic life when adults treat them as partners. Earls also directed Harvard's South Africa Fellowship Program, served on the board of Physicians for Human Rights, and was elected a fellow of the American Academy of Arts and Sciences, the American Association for the Advancement of Science, and the American Academy of Political and Social Science (2006 Mahatma M.K. Gandhi Fellow). Sara Lawrence-Lightfoot profiled him in I've Known Rivers: Lives of Loss and Liberation.
Friends remembered a soulful dancer and jazz lover who favored Sonny Rollins, a student of Japanese gardens, and a devoted New Orleanian. Grandchildren called him "PopPop" for his popcorn habit; he played clarinet for their birthdays. He died in Massachusetts on 5 September 2026, aged 84. He was survived by Maya Carlson Earls; daughters Leigh Earls Slayne and Tanya Earls Milner and their families; six grandchildren; and sisters Lynne Earls Scroggins and Carol Earls Franklin. His family invited memorial gifts to Physicians for Human Rights or UNICEF.
Biography adapted from Boston Globe/Legacy obituary (Sep 2026); New York Times Scientist at Work by Dan Hurley (6 Jan 2004); Wikipedia; AAPSS fellow profile; Harvard Chan profile; Sampson, Raudenbush & Earls, Science (1997). Wikipedia ↗
In their own words
“I realized that I couldn't have a career in neurophysiology. I couldn't remain in a laboratory. King's death made me see that I had to work for society. My laboratory had to be the community, and I had to work with children because they represent our best hope.”
Recalling April 1968 after Martin Luther King Jr.'s assassination, to Dan Hurley, New York Times, 6 January 2004
“We've been besieged to better explain our findings. We always say, It's all about taking action, making an effort.”
On collective efficacy and community gardens in Boston, New York Times, 2004
“If you got a crew to clean up the mess, it would last for two weeks and go back to where it was. The point of intervention is not to clean up the neighborhood, but to work on its collective efficacy.”
Contrasting outside cleanup with resident organization, New York Times, 2004
“If genetics plays a role, it's got to be a minor role, because the community effects are very robust.”
On neighborhood influence versus individual genetic explanations, New York Times, 2004
“I am concerned about crime, but my background is in public health. We look at kids growing up in neighborhoods across a much wider range than just crime.”
On PHDCN's broad developmental outcomes, New York Times, 2004
“What we are discovering around collective efficacy was not terribly obvious before we started to measure it with some precision.”
On measurement as scientific contribution, New York Times, 2004
“Please respect our efforts.”
Words on a South End community garden sign that Earls called a perfect illustration of collective efficacy (quoted in New York Times, 2004)
“It is far and away the most important research insight in the last decade.”
Jeremy Travis, former NIJ director, on Earls's Chicago findings, quoted in New York Times, 2004
“It is perhaps the most important research undertaking ever embarked upon in the study of the development of criminal behavior.”
Francis T. Cullen on the Chicago project, quoted in New York Times, 2004
“Tony's friends and colleagues know that his prodigious career was fueled by a fierce intellect and playful imagination.”
Family obituary characterization published via Boston.com / Legacy, September 2026

agreed, hope they're doing okay