Searching on FS for the marriage of Julia Mason I found:
Groom's Name: Julian Hiefues
Bride's Name: Julia Mason
Marriage Date: 04 Jan 1889
Marriage Place: Manhattan, New York, New York
Groom's Father's Name: Ramon Hiefues
Groom's Mother's Name: Francesco Slaviers
Bride's Father's Name: John Mason
Bride's Mother's Name: Elizabeth Collins
System Origin: New_York-ODM
Source Film Number: 1558514
Julian's surname really got mangled some where in the marriage transcription or record process;his mother's name would have been Francesca.
Unfortunately another bad feature of the MBs is the formating is not honored.