公证处的意思是现在没有任何关于我父亲生母的记录,所以他们不能办。我手上还有一份很多年前办的公证书,当时也是因为这个原因,上面只写了我爸出生地点和日期,但那个公证是三页纸的。我能不能把这份老公证找人这边公证一下,再写个说明一起交上去?谢谢!
-Because this birth certificate does not have your father's parents' names, it will not work. If you cannot get a new brith cerficate notarization, you may just use the one which has his step-mother' name and you just to put his step-mother as his biological mother's name in all the forms and documents (to be consistent).
You mentioned you used your father's biological mother's name in his previous non-immigrant visa application, but it does not matter because normally USCIS will not review the non-immigrant visa application materials. If they asks this question, you may just explain that it was your mistake to put the wrong name there fro the non-immigrant visa application.