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Isadore Dyer

1865 – 1920

American physician

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About Isadore Dyer

Lived 1865 – 1920 (aged 54). Isadore Dyer was an American physician.

Isadore Dyer (November 2, 1865 – October 12, 1920) was an American physician.

Early life Isadore Dyer was born in Galveston, Texas on November 2, 1865, the son of Isadore Dyer Sr. (1814–1888) and his wife, Amelia Ann (née Lewis). Isadore Sr. had immigrated to the United States from Germany in 1815; he served in the Mexican-American War and became a banker in Galveston.

Education and career He attended a private school in Galveston, the New York Grammar School, and the Bellevue High School in Bellevue, Virginia.

Family Dr. Dyer was the nephew of Major Leon Dyer, U.S. Army & Army of the Republic of Texas.

On July 31, 1905, he married Mercedes Louise Percival. They had six children: Amelia Dyer (died age 12), Isadore Dyer Jr. MD, Alfred Dyer Sr., Mercedes Dyer, Donal Dyer, and John L. Dyer, MD.

Death He died in New Orleans of angina pectoris on October 12, 1920, and was interred in Metairie Cemetery.

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Important facts

Birth century
Occupation
Nationality
Education
Yale University, University of Virginia, Yale School of Engineering and Applied Science, Tulane University School of Medicine

People in Isadore Dyer's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Isadore Dyer's

Frequently asked questions

Who was Isadore Dyer?

American physician (1865–1920)

When was Isadore Dyer born?

Isadore Dyer was born on 2 November 1865 in Galveston.

When did Isadore Dyer die?

Isadore Dyer died on 12 October 1920.

What was Isadore Dyer's occupation?

Isadore Dyer was a physician.

What nationality was Isadore Dyer?

Isadore Dyer was American.

Sources & further reading

· Wikipedia: Isadore Dyer

· Wikidata: Q6078393

· DBpedia: Isadore Dyer

Cite this page

APA: Biography.guide. (2026). Isadore Dyer. https://biography.guide/isadore-dyer/

MLA: "Isadore Dyer." Biography.guide, https://biography.guide/isadore-dyer/.

Chicago: "Isadore Dyer." Biography.guide. https://biography.guide/isadore-dyer/.

Data last updated: 2026-09-22 · Spot an error? Report a correction.

Portrait: Wikimedia Commons · author & licence

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