I discovered while searching the familysearch pilot program web site, that there were more Sanetra's in that database than the ellisisland.com database. The LDS church did the indexing for the Ellis Island records, but the Ellis Island site doesn't have the complete index posted yet.
Here is a link/address to the pilot record search page, which has the complete database. You can search by just the immigration records, and there are some amazing search features on this page. This database will remain free. If you have not accessed the Ellis Island page before, it will ask you to register to see the images, and it is free to register. The pilot record search page will link you to the images on Ellis Island's web page. :
I have started to create a chart following the Sanetra's and who they married, from Zablocie, Poland. And whether they settled in Chicago, Minneapolis or elsewhere. I will see if there's a way to post that chart. In the meantime, some names I have been charting are: Sanetra, Klosak, Wojtas, Keller, Wandzel, Biel, and Lach. My goal was to see when people came, who they were going to see, and who they left behind. I thought Adam Sanetra was the first in his family to immigrate, but I see from these records he actually came to see relatives I haven't heard of yet. So now we know others paved the way for him to come to America. By creating this chart, I saw a lot of people I'd never heard of who were listed as relatives. Now if only I could figure out how the clerks and census takers decided to spell my relatives names, so I could find the records!