When I read the article I immediately searched the NC voter registrations online.
There is a Pamella Cash-Roper, in Chatam county, who is a registered republican.
Not sure if this link to search results will work...
http://www.sboe.state.nc.us/VoterEligibility.aspx?id=16167023
she voted in the Democrat 2nd primary since the SBOE shows that she did vote and there were no Republican contests in Chatham County for the 2nd Primary. The only contest was the runoff for the Democratic primary in the Superintendent of Public Instruction.