回複：入美籍後戶口本上的名字還應該在上麵嗎？我的問題和你一樣，上學工作戶口轉來轉去

Not your 戶口, should be your parents.

It is very unlikely you will be on your parents current 戶口, but You must be on your parents 戶口 in some period of time, so does your sister. Once that is found, all the relations can be established. In fact, from my experience, it is also the base for the notorized birth cert. The question is how painful it is to track it down.