I recently found a reference to a "Williamsburg Plantation" in Rapides Parish, LA. The reference appears in a NAME INDEX TO SOME PROBATE DOCKETS OF RAPIDES PARISH LA 1864-1940 ( see:
http://www.rootsweb.com/~usgenweb/la/rapides/est_probate.htm ) which was extracted fromLDS Film 1317238 and reads:
57 Brown, Mrs. Elmira (Minors). 1869. Widow of Wm. R. Brown. Sarah (Cheneyville), Livingston L. Taeton M., Henry Jackson Brown (brother), tutor. Thomas P. Frith, under tutor. Re: Edwin C. Herbert; Patrick D. Spied; Lenn Tanner; Frank B. Johnson; J. R. Ford; Thomas P. Frith; H. F. Song; James Moody; Lindsay L. (Livingston) Brown; Sarah Brown married Laurence Bushnell; Williamsburg Plantation.
Any assistance in finding out who owned this plantation around 1869 and where it was/is located is greatly appreciated.