Combine butter, sugar and 1 egg in mixing bowl. Beat until smooth. Beat in second egg. Stir in banana and cranberries. In separate bowl, combine flour, baking powder, soda, salt and cinnamon. Stir well. Add all at once to banana mixture. Stir only to moisten. Scrape into greased 9 x 5 inch loaf pan. Bake in 350 degree oven for 1 hour or until it tests done. Let stand 10 minutes. Remove from pan and place on cake rack to cool. Wrap.