I do not have the answer to your question, but you might be interested in an article on these people.The "American Spirit" magazine, September/October, 2002 issue (put out by the D.A.R.) states:
"In the 1840s the Amos Deason family of Lancaster, SC built a one-story French Colonial-style cottage in Ellisville, Miss."There is a great description of the house, including a photograph.There is also a photograph of a sideboard which was owned by Eleanor Deason."
"The Deason family's descendants continued to occupy the house until 1991, when Frances Anderson Smith, a great-granddaughter of Amos Deason, and a friend of the Tallahala Chapter, Ellizville, Miss. donated the property to the (D.A.R.) chapter...The house is open to the public."
The article tells of a shooting which happened during the Civil War in which a friend of Mr. Deason's was murdered in one of the bedrooms.