In a medium size bowl mix together flour, 1 cup of sugar, baking powder, and salt and mix well.
Stir in milk, mixing until well combined. Pour this batter over the butter but do not stir together.
In a small saucepan, combine the peaches ( 2 15.25 .oz cans of sliced peaches in heavy syrup un-drained or 6 fresh medium peaches), lemon juice and remaining sugar and bring to a boil over high heat, stirring constantly. Pour the peaches over the batter but do not stir together.
Sprinkle cinnamon over mixture.
You can also sprinkle sugar over the top of the cinnamon.
Bake in the preheated oven for 40 to 45 minutes or until the top is golden brown.