John Robert Gregg | |
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| Born | June 17, 1867 County Monaghan, Ireland |
| Died | February 23, 1948 (aged 80) New York City, New York, United States |
| Occupation | Educator, publisher, Humanitarian, inventor |
| Language | English, Irish |
| Citizenship | Irish |
| Notable works | Gregg Shorthand |
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John Robert Gregg (17 June 1867 – 23 February 1948) was an Irish educator, publisher, humanitarian, and the inventor of the eponymous shorthand system Gregg Shorthand.