did some digging to see if joseph archie coffey and millie coffey are brother and sister. i found out that they are not. i did find one thing though millie is reuben's child and not his brother mc caleb's. reuben and mc caleb married sisters. reuben married rachel hayes and mc caleb married her sister sarah "sally" hayes. this is probably why the mistake was made. the family tree section for millie confirmes that reuben is her father and not mc caleb. hope this info sheds some light on the situation.