Deletion of Mildred Mann

Comment: Mann https://www.worldcat.org/search?q=au%3AMann%2C+Mildred.&fq=&dblist=638&qt=first_page wrote some books, most library holdings of single digit except https://www.worldcat.org/title/how-to-find-your-real-self/oclc/13394108?referer=br&ht=edition ''How To Find Your Real Self'' (43 libraries) (no |usable reviews found), a gsearch brings up mostly mentions/blogs that are not useable ie. https://radiopublic.com/the-reality-revolution-podcast-6rMlbe/s1!d03a9  "How To Find Your Real Self By Mildred Mann (Unabridged Audio book With Commentary)" podcast, http://www.themarginal.com/changingyourfuture.pdf ''Changing Your Future: Just wish it, be convinced and it happens'' by Roland Michel Tremblay ("This list of four steps, couched in quasi-scientific terms, is quite similar to, and was influenced by, the panentheistic "Seven Steps in Demonstration" first outlined in the book ''Become What You Believe'' by Mildred Mann (1904 - 1971): ..." (p.20)), more is needed
Stance: comment
Cited policy: Wikipedia:Reliable sources (WP:RS)