Zhang Daoling
While many of the beliefs of the early Path of Supreme Peace have been lost, it is very likely that they had some relation to the Way of the Celestial Masters, considering Zhang Jue claimed to be a descendant of Zhang Daoling. Many of the writings found in the 52 surviving chapters of the "Taiping Jing" that are found in the "Daozang" have a direct relationship to the Way of the Celestial Masters. Regardless, it is quite likely that any discrepancies found within the Way were suppressed by later Taoist sects.