Lewis Duvall, Gent., son of Mareen and Elizabeth (Jacob) Duvall, b. 21 Dec 1721, Queen Anne's Parish, Prince George's County, Maryland.
Married Alice (Brown) Hardesty, daughter of Mark and Susanna (Ijams) (Fowler) Brown. Alice was the widow of Francis Hardesty (died 1753), whose will had devised his entire estate to Alice and their son Francis.
Lewis and Alice had 7 children.
His seat was in St. John's Parish, in the south central part of the county, and there in the 1776 census he was listed as aged 55, his wife Alice as 53, with 2 males 14 and 16, 4 females 20,23, 26, and 28, and 9 slaves.
In 1778 he affirmed [rather than swore] his allegiance and fidelity to the State of Maryland, suggesting he may have been Quaker.
No record in Maryland for Lewis after 1789.
His widow Alice died in 1811, with her will probated in Prince George's county.