Listen to Dr G. Marx Hackenbush online. Dr G. Marx Hackenbush is an Unknown language song and is sung by Mel Blanc, Groucho Marx, Verna Felton, Wendell Niles and Deems Taylor. Dr G. Marx Hackenbush, from the album More Thoughts of the Chairmen Marx, was released in the year 2015. The duration of the song is 9:09. Download Unknown songs online from JioSaavn.