From my great grandma Gula (papa Terry's mom).
Mix 1 lrg can pumpkin with 1 c brown sugar, 1 c white sugar, 1/4 tsp salt, and 2-3 tbls cornstarch. Add 3 eggs and mix in the pumpkin can. Put in 1 can evaporated milk and fill the rest of the can up with whole milk. Add to pumpkin mixture and mix. Add 2 tbls pumpkin pie spice and mix. Pour into 2 oiled uncooked pie shells and bake at 425° for 15 min. Reduce to 375° till done (one hour total approx).