I am not researching this family, but am downsizing and going through articles I've saved.I have a page from the February 2002 issue of my D.A.R. magazine, which has a photograph of this woman, one of Andrew Johnson's homestead, and one of her home in Greeneville, Tennessee:
"Margaret Johnson Patterson Bartlett, great granddaughter of President Andrew Johnson, was an active member of Nolachuckey Chapter (D.A.R.).She and her mother, Martha, were responsible for the restoration of the Andrew Johnson Homestead.When she died in 1992, she donated her house to the Nolachuckey Chapter, D.A.R.She built it as a replica of the Andrew Johnson Homestead."
I will send this article to anyone who will e-mail me a home address.