Place the dried cherries and raisons in a bowl and cover with warm water to soak for 10 -15 minutes. Drain and set aside.
Preheat oven;325 for standard size loaf pan300 for small loaf pans
In a large bowl mix the flour, sugar, baking soda and cream of tarter together.
In a separate bowl, beat the eggs and butter to combine. Mix in vanilla, lemon juice and sour cream.
Add the raisons and cherries to the dry ingredients and stir through. Combine the wet ingredients with dry. The batter will be extremely stiff.
Standard size loaf pans - Bake at 325 for 1 hour then reduce temperature to 300 and bake for an additional 50 minutes to an hour Small loaf pans - bake at 300 for one hour then reduce temperature to 275 and bake for an additional 50 minutes to an hourFor both sizes, the cakes are done when they are a light golden brown on the edges and a long skewer inserted into the center of the cake comes out with just a few moist crumbs. Remove the cakes from the oven and place on a wire rack to cool completely.