Sarah Elizabeth Rainey (Rainey-859) - Find A Grave Memorial# 95601896 appears to have been from Pulaski County, Kentucky (B. 2/1821 per FindAGrave)
From the 1850 Census, I estimate she married Andrew M McKinzie (McKinzie-117) somewhere around 1832-33, but cannot find any documentation for their marriage nor record indicating her birth.
I believe I located the correct family in the 1850, 60, & 70 censuses in McNairy County, Tennessee. If correct, they put her birth year about 1815-1816
Sarah Elizabeth Rainey was a very popular name, so there are a lot of records for that name which doesn't help :-(
Any help would be appreciated. Thanks, Dan