JM
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James Mark McGinnis Barr
English-American inventor and polymath (1871–1950)
- Fame40.6
- Momentum20.0
- Wikipedia166
Lived 1871–1950, aged 79United States
United StatesSummary
Updated 2026-06-19
James Mark McGinnis Barr was an electrical engineer, physicist, inventor, and polymath known for proposing the standard notation for the golden ratio. Born in America, but with English citizenship, Barr lived in both London and New York City at different times of his life.
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Rising40.6
Composite of search demand, mentions, audience & graph footprint.
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Momentum20.0
Historical5.5
Source confidence35.0
Completeness55.0
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