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Sumiko Hennessy

b. 1937

Japanese-born American social worker, trauma therapist, academic, and activist for the Asian-American community

Social worker Academic Tokyo University of Social Welfare
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About Sumiko Hennessy

Born 1937. Sumiko Hennessy is a social worker, academic and tokyo University of Social Welfare.

Sumiko Tanaka Hennessy (born November 8, 1937) is an American social worker, trauma therapist, academic, and activist for the Asian-American community in Denver, Colorado. Born in Yokohama, Japan, she was a founding board member and later executive director of the Asian Pacific Development Center. In 2000 she helped inaugurate the Tokyo University of Social Welfare and is presently a professor emeritus of that institution. In 2004 she and her husband founded Crossroads for Social Work, LLC, a training program for mental health professionals in Japan and the United States. The recipient of numerous awards, she was inducted into the Colorado Women's Hall of Fame in 1989.

Early life and education Sumiko Tanaka was born in Yokohama, Japan, on November 8, 1937. She studied French at an Alliance française school with an eye to pursuing a diplomatic career. She next enrolled at the Tokyo University of Foreign Studies, but upon learning that as a woman, she would never qualify to be an ambassador for Japan, she switched her career plans to social work. She earned her bachelor's degree in French, and then studied as a scholarship student at a Belgian school of social work in 1960. In 1961 she received a scholarship to study at the Fordham Graduate School of Social Service in New York, completing her Master of Social Work degree in 1963 and her doctorate at the University of Denver.

Career After receiving her degree, Hennessy was a social worker at several New York City facilities, including the Henry Street Settlement, the Bird S. Coler Hospital for chronic care, and Maimonides Medical Center. In 1969 she began teaching as an assistant professor at New York University Silver School of Social Work, a position she held until 1974. At the same time, her husband taught social work at Long Island University.

In 1974 the two decided to obtain their doctorates at the University of Denver. She combined her university studies with half-time work as chief social worker in the Division for Developmental Disabilities of the Colorado Department of Institutions. Both she and her husband received their doctorates in August 1978, becoming the only couple at the university to receive their doctorates on the same day. She submitted her doctoral dissertation on the topic A study of factors related to the attitudes of public social workers toward case management.

From 1980 to 1984 Hennessy was the assistant superintendent of education and therapy at Ridge Home for the Developmentally Disabled in Wheat Ridge, Colorado. In this capacity, she supervised 150 staffers and a $15 million budget.

In October 1980 Hennessy was a co-founder of the Asian Pacific Development Center, which provides mental health and social services, counseling, and education for Asian American immigrants in the Denver metropolitan area. As a way of easing Asian "discomfort with mental health assistance", she introduced other services to help clients acclimate to American life, including classes in English as a second language, employment counseling, and youth activities. Hennessy herself raised funds for the center's services by giving lectures and also leading courses for corporations on "understanding Asian cultures, stress management Asian-style, and doing business in Asia".

In February 1984 Hennessy co-founded the Asian Chamber of Commerce in Denver.

In 2000 Hennessy assisted in inaugurating the Tokyo University of Social Welfare and became the school's assistant dean of field education. She wrote the foreword to the 2014 book Attachment, Trauma, and Healing: Understanding and Treating Attachment Disorder in Children, Families and Adults.

Affiliations and memberships Hennessy has served on the boards of the Women's Foundation of Colorado, the Women's Economic Development Council, the Asian Advisory Council for the Mayor, and the board of governors of Nine Who Care. In 1998 she received a Community Health Leadership Award from the Robert Wood Johnson Foundation, which named her one of "ten outstanding individuals changing the shape of health care in America". The same year, she was honored as a Denver Women of Distinction by Girl Scouts of Colorado.

Personal life She met her husband, Richard Hennessy, while both were studying at the Fordham Graduate School of Social Service.

Hennessy is fluent in Japanese, French and English, and reads and writes Chinese.

Selected articles

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Important facts

Birth century
Education
University of Denver, Fordham Graduate School of Social Service, French language, Master of Social Work
Awards
Colorado Women's Hall of Fame
Also known as
Sumiko Tanaka Hennessy, Sumiko Tanaka

People in Sumiko Hennessy's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Sumiko Hennessy's

Frequently asked questions

Who is Sumiko Hennessy?

Japanese-born American social worker, trauma therapist, academic, and activist for the Asian-American community

When was Sumiko Hennessy born?

Sumiko Hennessy was born on 8 November 1937 in Yokohama.

What is Sumiko Hennessy's occupation?

Sumiko Hennessy is a social worker, academic and tokyo University of Social Welfare.

Sources & further reading

· Wikipedia: Sumiko Hennessy

· Wikidata: Q26708477

· DBpedia: Sumiko Hennessy

Cite this page

APA: Biography.guide. (2026). Sumiko Hennessy. https://biography.guide/sumiko-hennessy/

MLA: "Sumiko Hennessy." Biography.guide, https://biography.guide/sumiko-hennessy/.

Chicago: "Sumiko Hennessy." Biography.guide. https://biography.guide/sumiko-hennessy/.

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