Once the ancestors were in the "new land"they might have chosen any name or kept the "old country" name. Did you register to EI site?No money.You know that you can look at the actual manifest? I see AVRAM: Sava, Ilena, Mas(x)a, Emil, Petru and Ilie. Petru / Peter was naturalized citizens.The numbers by his name. Sava left a brother-in-law Ilie Net(h)sau (?) in K.Sz.Miklos. Ilena's maiden name was Netsau/Nehsau (?) as Ilie was her brother.They were going to Detroit, cousin Sima or Simon Groza. Sava was in US in 1911 and 1913 before this trip.
The surname AVRAM and GROZA shows up in Arad's and Bucuresti's phone book.The only two places I looked.Did not locate Netsau or Nehsauwww.whitepages.ro