Yes Tristan Tzara wrote and co-authored early Dada manifestos. In this sense he's one of the founders, but I meant "leader" in the sense that he was promoting the Dada movement outside of neutral Switzerland, which actually inspired Andre Breton and Paul Eluard and others from other countries to join.
Thanks for the support and yes, there will be more like these. I just need to find an alternative to Steemit text editor.
RE: [Modern Art Series] Dadaism – Chapter 6