SEEKING FAMILY MEMBERS LAST NAME GILA!!!! Originally of Budapest,Hungary. Please reply to me A.S.A.P. Thankyou?

I am desperately looking for any living relatives of Sandor Gila my fathers name. He emigrated from Budapest,Hungary to the U.K. at the time of the hungarian uprising. He then went on to marry my mother Maureen,and they settled in Wales,U.K and had four children. My grandfather Jozef Gila (first name may have spelling mistake),come to visit around 1974. Sadly after his return to Hungary he was involved in a bus accident resulting in his death. My father was one of twelve or thirteen siblings. I only have a little more information as my father died when i was seven years old. He did tell me that he had been previously married in (Hungary i think),but it was ended fast. If anyone has any information to help me with my search please contact me,any information would be very welcome. Maybe you new my father ? as his alias name in wales was Alex Gila ,did he tell you anything of his past in Hungary?. ONLY GENUINE ANSWERS PLEASE,THANKYOU :)