Carlos Munoz wrote a wonderful article on discoveries of possible Louis Grell murals in the now torn down Retlaw Theatre which opened on December 26, 1925 in Fond du Lac Wisconsin.  We believe the murals and the interior of the theatre were decorated and designed by Louis Grell for Chicago based Rapp & Rapp Architects.

http://www.fdlreporter.com/story/news/local/2014/10/14/retlaw-theater-may-uncovered-louis-grell-mural/17274741/

Please click the link above to read the article.  THANK YOU CARLOS,   WONDERFUL ARTICLE