In a medium bowl whisk together flour, baking soda, cinnamon, allspice or nutmeg, and salt.
In a large bowl mix together eggs, sugar, brown sugar, pumpkin puree, coconut oil, and half and half.
Add dry ingredients to wet ingredients and stir until combined. Pour into prepared bread pans. (fill ¾ full).
In another bowl combine topping ingredients wet and crumbly. Using your fingers sprinkle bits of mixture over batter in bread pans.
Bake for 30-35 minutes until an inserted toothpick comes out mostly clean. Allow to cool completely before removing from pan and slicing.