David Morgan

Unmarried. THE GROTON AVERY CLAN, Vol. I, by Elroy McKendree Avery and Catherine Hitchcock (Tilden) Avery, Cleveland, 1912. p. 258

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David, apparently was " weak in mind, bereft of reason and faculty to govern and care for himself;" caused by epileptic fits. He was cared for by his older brother John, never married ; died in Groton, 10 June, 1805, age 39, from the effects of his infirmity.

source: Morgan genealogy : A history of James Morgan, of New London, Conn., and his descendants; from 1607 to 1869, by Nathaniel H. Morgan, p. 102