Jan Nickowol
Zofia Alazawa
Here is a marriage record for Jan Nickowal and Zofia Olazawa in New Bedford, Massachusetts. Not sure if it is the right one, but other names are included which may be of interest to you.
familysearch.org/ark:/61903/1:1:N4QB-2SN
Back then names were often incorrectly spelled especially ones which were hard to pronounce, so I'm not surprised that you have seen different spellings of names.
John.
English spelling of Jan.