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An organic chemist who received in B.A. in Chemistry from Harvard in 1909, and helped identify complex vegetable oils and plant alkaloids, including CBD in 1940, is Roger ______. Fill in the one word blank, also the surname of the 2nd and 6th Presidents of United States.

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Fact: 12 of the US presidents owned slaves, and 8 of them enslaved people while in office.


1. An organic chemist who received in B.A. in Chemistry from Harvard in 1909, and helped identify complex vegetable oils and plant alkaloids, including CBD in 1940, is Roger ______. Fill in the one word blank, also the surname of the 2nd and 6th Presidents of United States.





 
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