I assume you refer to Janusz Stankiewicz Genealogia list of przodkow suggested by Ken Fedzin. It is in Polish.
To use that list you must follow the menu on the left hand side.
I used the link to an alphabetical list of names of all those recorded who lost their lives in WWI. Just follow the alphabet.
Napierala (under N) there are Jozef; Karol; Stefan and Szczepan mentioned.
There are no Plachta names on the list.
Yes, the whole site is dedicated to a family record, but it is so well expanded that many of our members will benefit from this work by Janusz S. I know some of our members have used it already and found a great deal of interest. I also am pleased to to have benefitted from it and in particular about Baranowicze and its surroundings in Belarus.
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