Preheat oven to 325 degrees Fahrenheit
Grease and flour 2 small loaves and 1 large loaf pan, or 1 bundt cake pan.
In a large mixing bowl, cream together shortening and sugar until light and fluffy.
Add in each egg, beating after each addition.
Stir in pumpkin, until well combined.
In a separate mixing bowl, combine flour, baking powder, baking soda, ground nutmeg, ground cinnamon, salt, and allspice. Slowly incorporate dry ingredients into creamed mixture.
Bake at 325 degrees for 60 minutes (small loaves) and 70 minutes (large loaf), or until toothpick comes out clean from the center of the bread.