According to record made before year 1916, which was 90+ years ago, in China, the Bai Shen (Deities Worshipping) Group was addressed as Tong Su Dao Jiao, in chn: 通俗道教, which means that the “Taoism” is closely related/associated with the folks’ practises and local customs whereas the “Main Stream” Taoism was addressed as Dao Shi Dao Jiao, chn: 道士道教, which means that only trained or qualified Priests could only be involved in the rituals/ceremonies, etc.
But after certain arguments on the addressing and the sounding, which always mis-lead the others, the addressing of the 2 different groups changed from the above-mentioned to the following-mentioned addresses after the year 1939.
Tong Su Dao Jiao to Min Zhong Dao Jiao, in chn: 民眾道教, which means that this Taoism Group belongs to the Folks, translated to english will be known as Folks Taoism or Public Taoism, whereas;
Dao Shi Dao Jiao to Cheng Li Dao Jiao, in chn: 成立道教, which means Established Taoism or can also be addressed as Main-Stream Taoism or english version: Orthodox Taoism.
Such addresses can be widely seen in records after 1940s.
Additional Point: The starting period of this Min Zhong Dao Jiao starts as early as Tang Dynasty, and who's the one who initial it? No other than the founder of Quan Zhen Sect - Lv Dong Bin aka Lv Yan.