Pre-heat the oven to 350°, and grease a loaf pan well.
Mix together the softened butter and sugar; then mix in the eggs, vanilla extract, and pumpkin.
Sift together the dry ingredients, including the flour, salt, baking soda, baking powder, pumpkin pie spice, and ground cloves.
Mix the dry ingredients into the wet ingredients.
Then add the chopped walnuts and mix again.
Pour the dough into a well greased loaf pan, and bake at 350° for about an hour, or until a toothpick (or cake tester) inserted in the center comes out clean.
Remove your loaf of deliciously moist pumpkin bread from the oven, and let it cool in the pan for about 10 minutes.
Then run a butter knife around the edge of your loaf, and slip the loaf out of the pan onto a wire rack to cool.
Serve with butter, jelly, or whatever your heart desires!