Daughter of General William Campbell and Elizabeth Henry Campbell.
Sarah was the wife of General Francis Preston
Francis was the 2nd son of COL William PRESTON of Smithfield (VA).
She had at least 6 daughters & 4 sons.

She inherited (at least) 13,056 acres as described in the book -
Virginia Soldiers of 1776 in Washington County, VA circa Mar & Apr 1834 -
pages 1071 thru 1073, and as recorded in Book 3, page 330.

The two large blocks of property came from GEN William CAMPBELL.
The one property he received from his father, Charles CAMPBELL, who
helped map out and explore the large land grant. He received property
near the Buffalo Lick (aka Salt Lick) which passed to his wife, Elizabeth (HENRY) CAMPBELL.

General William CAMPBELL & Elizabeth (HENRY) had at least two children, with the son the expected heir. When General CAMPBELL died, the VA legislature voted a large grant to his son. I thought the son was named William CAMPBELL ("Jr"), but the following book makes it sound like his name might have been George William CAMPBELL.

Sarah's brother died young, so the property the VA government had earmarked to him wound up going to Sarah. I believe this is the property talked about in the following book link. It amounts to at least 13,056 acres on Warrant No 7591 issued 11 Apr 1834 to George William Campbell's heir, namely, Sarah B. Preston, wife of Thomas Preston. Recorded in Book 3, page 330 (of Washington County, Virginia) records.

The land granted by VA was apparently for William CAMPBELL's service from June 1775 to the close of the war (circa 1783) and/or the death of the General, possibly Dec 1783.

The resolutions were signed 14 Apr 1834.
There is a reference to the Dec 1783.

http://books.google.com/books?ei=GXoOTaL1OYSs8Aay7Ym2Dg&ct=
result&id=GHErAQAAIAAJ&dq=Sarah+Preston+%22William+
Campbell%22+Richmond+OR+Fire&q=Sarah+Preston#search_anchor



According to this source,
http://books.google.com/books?id=E2DWAAAAMAAJ&q=Sarah+B.+Campbell+Richmond+Fire+
Preston&dq=Sarah+B.+Campbell+Richmond+Fire+Preston&hl
=en&ei=A4EOTYikBcqr8AaF6InyDQ&sa=X&oi=book_result&ct
=result&resnum=3&ved=0CDEQ6AEwAg

Sarah Buchanan (CAMPBELL) PRESTON had ten children: 6 daughters & 4 sons. It appears to go on to list them.


Memoranda of the Preston Family - by Orlando BROWN pg 17…
Children:
1) William Campbell PRESTON, distinguished lawyer and Senator in Congress from SC, m1) Miss COULTER of that State (SC), after her death, m2) Miss DAVIS (of SC). His only child, Sally Campbell PRESTON, unmarried.
2) Eliza PRESTON mar. Gen Edward CARRINGTON of Halifax, VA. They had children (minors as of the book?)
3) Susan PRESTON mar. cousin James M'DOWELL and they have nine children.
3.1 -- 3.9
4) Sarah PRESTON mar. cousin John B. BLOYD - no children (as of this book)
5) Sophonisba PRESTON mar. Rev Robert J. BRECKINRIDGE
and they had 6 children: Mary, Sally, Robert, Maria, William, and Sophonisba.
6) Maria PRESTON, (deceased as of the Preston Family papers), mar. John M. PRESTON of Abingdon, formerly of Kentucky. They had 2 sons, minors.
7) Charles PRESTON mar. Miss BEALL and has left no children.
8) John S. PRESTON mar. Miss HAMPTON, dau. of Gen Wade HAMPTON of SC
with 5 children, minors (as of history of Preston Family.
9) Thomas L. PRESTON mar. Wade HAMPTON Jr., grandson of Gen Wade HAMPTON. Together, they had one son, a minor. (as of the Preston Family papers.)