For those of you working on the "subject" mentioned family, I've posted a list of books regarding them. Hope this is of help to you.
"Noblesse Oblige" by Charles Robert Noblitt (Genealogical records dating back to 1066 to the oldest identified forebear of the Noblitt family, Jaccques de Noblette)
"From When Ye Came" by Lela Grant Carruth This book is compiled of the genealogical records of the following families: Carruth, Craighead, Davis, Grant, Hawkins, Miller, Mills, Noblitt, Packwood, Tyler, Wood and related families.Pages 341-477 pertain to the Noblitt lineage)
"Down the Centuries with the Noblitts" by Loren Scott Noblitt
"Genealogical Collections Relating to the families of Noblet" by John Hyndman Noblitt
"Once Upon a Bayou" by Jill Noblit MacGregor
There are also websites where a lot of this info is already posted. I'll be happy to point you to them.