John R. Clarke, Date of Birth, Place of Birth
TweetJohn R. Clarke
American scientist and underwater breathing apparatus authority
Date of Birth: 20-Nov-1945
Place of Birth: Fort Smith, Arkansas, United States
Profession: inventor
Nationality: United States
Zodiac Sign: Scorpio 
About John R. Clarke
- John R.
- Clarke (born November 20, 1945) is an American scientist, private pilot and author.
- He is currently the Scientific Director at the United States Navy Experimental Diving Unit (NEDU).
- Clarke is recognized as a leading authority on underwater breathing apparatus engineering.
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