Letter to Gus Ryberg from J.F. Dennison of Monbulk commenting on Gus Ryberg's book 'The Four Ws'. Contains additional details of perosnalities and places in Emerald-Gembrook-Monbulk areas.4 pp. hand-written letter with 2pp. typed copy.emerald, victoria, australia, gembrook victoria australia, monbulk victoria australia, authors, local history, timber industry, gus ryberg, the four ws, j.f. dennison, ern le juge