Heat the oven to 350°F and thoroughly grease the loaf pans with butter.
In a medium bowl, whisk together the flour, baking powder, baking soda, salt, cinnamon, ginger, and nutmeg. Set the dry ingredients aside.
In a large bowl, cream together the butter and brown sugar with a wooden spoon.
Add the eggs, one at a time, beating well after each addition.
Stir the pumpkin and the milk into the wet ingredients.
Add the dry ingredients to the wet ingredients all at once and mix just until the batter is smooth.
Divide and spoon the batter into the greased loaf pans, coaxing it into the corners and smoothing the tops.
Bake the loaves for about 45 minutes or until a toothpick inserted in the center comes out clean and the edges are beginning to turn golden brown.
Let the loaves sit in their pans for 10 minutes before turning them out and cooling on metal racks.