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Cyrus Mark

1900 – 1983

American conservationist

Conservationist
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About Cyrus Mark

Lived 1900 – 1983 (aged 82). Cyrus Mark was an American conservationist.

Cyrus Mark (June 3, 1900 – February 8, 1983) was a prominent early advocate of nature conservancy in the state of Illinois. Mark served as the first executive director of the Illinois chapter of The Nature Conservancy. He was instrumental in the first Nature Conservancy acquisition in the Chicago area; Volo Bog. In 1958, Mark, along with George Fell, the first president of the Nature Conservancy, negotiated the purchase of Volo Bog by The Nature Conservancy. Cyrus Mark was educated at Yale University and the University of Iowa. In 1923 he began work at Clayton Mark & Co. as an assistant treasurer. He held various positions including plant manager, vice president, and became president, general manager and director in 1943. Cyrus retired as president in 1963. Cyrus always had an interest in birds and conservation. He was also the chairman of the Illinois Nature Conservancy and a director of the national Nature Conservancy.

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Important facts

Birth century
Occupation
Conservationist
Nationality

People in Cyrus Mark's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Cyrus Mark's

Frequently asked questions

Who was Cyrus Mark?

American conservationist

When was Cyrus Mark born?

Cyrus Mark was born on 3 June 1900.

When did Cyrus Mark die?

Cyrus Mark died on 8 February 1983.

What was Cyrus Mark's occupation?

Cyrus Mark was a conservationist.

What nationality was Cyrus Mark?

Cyrus Mark was American.

Sources & further reading

· Wikipedia: Cyrus Mark

· Wikidata: Q5201125

· DBpedia: Cyrus Mark

Cite this page

APA: Biography.guide. (2026). Cyrus Mark. https://biography.guide/cyrus-mark/

MLA: "Cyrus Mark." Biography.guide, https://biography.guide/cyrus-mark/.

Chicago: "Cyrus Mark." Biography.guide. https://biography.guide/cyrus-mark/.

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