The election commissioners of each county shall, at the meetings provided for in Sections 23-15-123, 23-15-155 and 23-15-157, hear and determine any appeals which may have been perfected and which are pending on the respective dates provided for in Sections 23-15-123, 23-15-155 and 23-15-157, from the decisions of the registrar of their county allowing or refusing the applications of persons to be registered. The above dates for hearing the appeals are supplemental to the provisions of Section 23-15-65.