Sarah Welch

https://www.familysearch.org/tree/pedigree/landscape/K4F6-QRS

Sarah "Sally" Grigsby was the daughter of John Grigsby and Rosanna Etchison. She married Thomas Welch in about 1755 in Culpeper Co., VA and had known Welch children (from my old copy of Henrietta Hamilton McCormick's Genealogies and Reminiscences, signed by her husband to our family):

Mildred, 1 Jan 1776 (Alex. R McCorkle) below Nancy, 1780 (Wm F McCorkle) below Rosa, abt 1780 (Wm Cunningham) Elizabeth Betsy, 1790 (Benj. Darst) below Benjamin, 19 Feb 1792 (Charlotte Pitzer) below Thos III, 4 Apr 1794 - 9 Jul 1853 (Eliz Porter Grigsby) Jane, ? (Benjamin Holmes) Rachel, ? (Thomas Wilson)

She died in ABOUT 1821.

Their "Fancy Hill" home was built for Thomas and Sarah. It was one of the "Seven Hills of Rockbridge" belonging to the Grigsbys. In 1997, it was added to the National Register of Historic Places. Owners, Elmer and Eva H Knick, were going to tear it down but were persuaded to renovate it instead, which they did. It's a 2 story brick house. The registry has a lot of data on it.

I suspect she was also buried at Falling Spring Presbyterian Church Cemetery, like her husband but it appears to be undocumented.

An obit was not located at the Library of Congress. Perhaps locally, 1821 newspapers may have something.

Bio by LSP