The U.S. Army treated a President's cold using chlorine gas

the verdict

SUPPORTED

the evidence backs this

Recorded sources

3 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Historical archives, contemporary news reports, and Library of Congress photographs confirm that in May 1924, the U.S. Army treated President Calvin Coolidge's cold with low levels of chlorine gas in an airtight room.

How claims like this are judged

Judged against reference works: claims of this kind are settled by the historical reference record, not journal abstracts.

Evidence for · 3

skeptics.stackexchange.com: Did the U.S. Army treat a President's cold using chlorine gas?

Recorded source metadata

skeptics.stackexchange.com: Did the U.S. Army treat a President's cold using chlorine gas?. skeptics.stackexchange.com. https://skeptics.stackexchange.com/questions/32983/did-the-u-s-army-treat-a-presidents-cold-using-chlorine-gas

Confirms historical accounts that the U.S. Army Chemical Warfare Service treated President Calvin Coolidge with chlorine gas.

Source citation format

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More for · 2

loc.gov: Col. M.A. DeLaney, U.S.A., the man who has been treating Pres. Coolidge on May 22nd while the Pres. was in the air-tight room receiving the chlorine gas treatment for his cold. Col. DeLaney is watching the apparatus that denotes the amount of gas being sent into the air-tight chamber

Recorded source metadata

Library of Congress archival caption documents U.S. Army Colonel M.A. DeLaney treating President Coolidge with chlorine gas.

Source citation format

loc.gov: Harris & Ewing Collection

Recorded source metadata

loc.gov: Harris & Ewing Collection. loc.gov. http://loc.gov/pictures/item/2016887308/marc/

Archival photo record confirms U.S. Army treatment of President Coolidge using chlorine gas.

Source citation format

The paper trail · every fact has a biography

first checked31 Jul 2026

judged → SUPPORTED · 7531 Jul 2026

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