S.C. Code Ann. § 15-49-50: Effect of change on old obligations.

When a person changing his name is bound by obligation or otherwise, the effect of which obligation would extend to and impose any obligation on the heirs, executors or administrators of the person so having changed his name, such heirs, executors or administrators shall be and remain bound, to all intents and purposes, in the same manner and to the same extent as if the person had not changed his name.