Did George Jones sing a song called Harlan County Line and if he did where can I buy copy of it?

George Jones did record the song "The Legend of the Grand Ole Opry," but not the song "Harlan County Line."

The song "Harlan County Line" is by the bluegrass group The Dillards. It was released in 1969 and was used in the sound track of the 1975 movie "Coal Miner's Daughter."