PMFJI, But didn't the thing say that the person at the door was the oldest? To me that would be that in a household of three, that is the or a parent. I think a 15 yr parent is a little extreme in America. ;-)

>>Naomi,
>>
>>>Do you mean they can be step-brothers (sisters)?
>>
>>They don't even have to be blood related.
>
>Yes, exactly what I thought. It could be a family with the father having a son of the previous marriage and the new wife having a daughter of the previous marriage. I guess, they can even get married after certain age < g >