Just some more info.
In 1880 Leadbelly's parents were living at Jeter Plantation in Mooringsport Louisiana. His father, Wesley Ledbetter(23), was born in North Carolina and in 1880 was a farmer. His mother, Sallie Ledbetter(20), was also born in North Carolina. Living with them was a step son, Alonzo Batts, and a nephew, Warren White.

Also in the same region were Leadbelly's grandparents. Grandfather Wesley Ledbetter(50), a farmer, and grandmother Annie(55), uncles Bob(20) and Terril(15), and aunt Mary(11). They were all born in North Carolina.

It is said that it was Uncle Terril who bought Leadbelly an accordion and that it was either Terril or Bob who taught him "Goodnight Irene".

Info from various sites.