KIRKWOOD, Mo. (First Alert 4) – The decades-old Greentree Festival in Kirkwood found a new mission to rally behind this weekend. The 62-year-old festival of music, food and the arts attracts hundreds from across the area. The Kirkwood American Legion Memorial Post 156 spent Sunday showing off a model ‘tiny home’ on the festival grounds and helping to raise money in order to help homeless veterans get back on their feet.