I have a copy of a family tree the Róża priest created for someone searching their Jarzab line a few years ago. It focuses on the branch of the family you have. They just changed pastors at this parish this summer when I was there.
Anyone else looking for information on this family or Gurga, Szacik or Kuros in the area, please contact me (add a "." to both sides of my username middle initial "m" at gmail.com).