Biography.guide
Home › People › Physiologist › John Hilton Knowles
Portrait of John Hilton Knowles

John Hilton Knowles

1926 – 1979

1926-1979 , physician, cardiopulmonary physiologist, and hospital and foundation administrator

Don't just read it — keep itBiographies to ownE-book · Audio · Video From $7 →

About John Hilton Knowles

Lived 1926 – 1979 (aged 52). John Hilton Knowles was an American physiologist and physician, known for Rockefeller Foundation.

John Hilton Knowles (May 23, 1926 – March 6, 1979) was an American cardiopulmonary physiologist and physician who was most notable for being the eighth president of the Rockefeller Foundation from 1972 until his death from pancreatic cancer in 1979, and general director of the Massachusetts General Hospital from 1962 until 1972.

Biography Early life and education Knowles was born on May 23, 1926, in Chicago to James Knowles (1896–1971), who was a flying ace in World War I and served as vice president of the Rexall Drug Company, and Jean Laurence Turnbull (1894–1982), an artist. Knowles grew up in Normandy, but when he was twelve he and his family moved to Belmont where he would attend Belmont High School. After graduating from high school, Knowles would enroll at Harvard College where he majored in biochemistry. Along with his classmate Jack Lemmon, he would play piano on the Harvard radio station. He graduated in 1947 completing his Bachelor of Arts. After being rejected by eleven medical schools, including the Harvard Medical School, he would enroll at the Washington University School of Medicine where he would be elected into the honor society Alpha Omega Alpha and graduated cum laude as Doctor of Medicine.

Knowles would start his medical internship at the Massachusetts General Hospital where he would meet Edith Morris LaCroix, a cytotechnologist, whom he would marry in 1953 and have six children with.

Massachusetts General Hospital In 1962 he became the general director of the Massachusetts General Hospital. One of the first things he did as general director was replacing wooden benches with comfortable chairs and also introduced nine coronary care units. He would also assign psychiatrists at schools, courts and social agencies including opening a medical station at the Logan International Airport for airport employees and passengers.

Rockefeller Foundation In 1972, Knowles became the 9th president of the Rockefeller Foundation and in this position he established the International Agricultural Development Service. While president, he became a professor of medicine at the New York University Medical Center.

Biography shop

Don’t just read it —
keep it.

Full-length biographies made to live with: read them, listen on the way to work, watch them tonight.

  • E-book
  • Audio
  • Video
Browse the shop — from $7

Instant download · yours to keep · every purchase keeps this site free

Important facts

Birth century
Nationality
Known for
Rockefeller Foundation
Education
Belmont High School (Massachusetts), Harvard College, University at Buffalo, University of Rochester Medical Center

People in John Hilton Knowles's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped John Hilton Knowles's

Frequently asked questions

Who was John Hilton Knowles?

1926-1979 , physician, cardiopulmonary physiologist, and hospital and foundation administrator

When was John Hilton Knowles born?

John Hilton Knowles was born on 23 May 1926 in Chicago.

When did John Hilton Knowles die?

John Hilton Knowles died on 6 March 1979 in Boston, Massachusetts, Massachusetts General Hospital.

What was John Hilton Knowles's occupation?

John Hilton Knowles was a physiologist and physician.

What was John Hilton Knowles known for?

John Hilton Knowles was known for Rockefeller Foundation.

What nationality was John Hilton Knowles?

John Hilton Knowles was American.

Sources & further reading

· Wikipedia: John Hilton Knowles

· Wikidata: Q55720429

· DBpedia: John Hilton Knowles

Cite this page

APA: Biography.guide. (2026). John Hilton Knowles. https://biography.guide/john-hilton-knowles/

MLA: "John Hilton Knowles." Biography.guide, https://biography.guide/john-hilton-knowles/.

Chicago: "John Hilton Knowles." Biography.guide. https://biography.guide/john-hilton-knowles/.

Data last updated: 2026-09-20 · Spot an error? Report a correction.

Page generated 2026-09-27 05:29 UTC