If your Schillers were from Borowiec then we're definitely related, because through all the Grodziec church books every Schiller in Borowiec is always a direct descendant of my Christian Schiller/Maria Elisabeth Meyer. (There are other Schillers in neighbouring towns like Bialobloty or Wieloleka that I can't find enough information about to know whether they're related or not -- they probably are, but I can't prove it -- but if your Schillers are from Borowiec, we're definitely related.)
But I only just saw your messages for the first time today, and none of them have left any way to contact you at all. So if you see this, could you please contact me directly?