The fact that Jan Posobiec (shown on the Ellie Island web site) also went to Bridgeport, I'll bet they were related.

The death certificate should show the name of the "informant" who supplied the information.

Vierzavice....I believe is Wierzawice. I know little to nothing about the Byzantine Church, but am guessing it is highly influenced by the Russian Orthodox Church....who replace the W's with a V.

LDS is Ladder Day Saints and FHL is their Family History Library. The LDS have many FHL (libraries) all aound the world. You could check with the LDS to learn where there is FHL in your area. I know of little to no LDS records you can view through the website.

I don't read or write Polish, but know a little to get by. Would be glad to help you where I can. Tomorrow will send you info how to locate churches in Poland.