Also have you tried this site?
http://www.olddarlington.scgen.org/skinner15.htmlI notice they have a card about Carr's.
OHN CARROLL SKINNER GENEALOGICAL COLLECTION: John Carroll Skinner was a professional genealogist and author with strong ties to Darlington, Lee, and Sumter Counties, SC. Skinner's genealogical interests were not limited just to these counties, but embraced all areas of South Carolina. He was well known for his comprehensive research, his knowledge of the available resources, and his leadership in the South Carolina Genealogical Society. Upon his death, his genealogical collection consisted of tens of thousands of index cards, hundreds of books and files, and scores of completed genealogical research projects. For several years this collection remained in storage awaiting a fitting home. The Old Darlington District Chapter, SCGS approached Skinner's heirs and asked that the Skinner Genealogical Collection be housed in the Hartsville Genealogical Research Library. The ODDC SCGS would undertake the massive task of sorting, cataloging, and making available to the public this collection. In early 1998, the ODDC SCGS was given this opportunity by the Skinner family. The Skinner Genealogical Collection was placed at the Hartsville Genealogical Research Library. After a year of work, the collection was finally made fully available to the public in early 1999.