Rospierski line

This is all I have on the start of my maternal grandfather's father's line...

Jan Rospierski married Marianna Wojcik  (Wójcik) 

These are their children. You might notice that the surname spelling differs with the siblings. This is not a typo but a choice that the children made. 

1. Adam Rospierski b.1886 d.1973
2. Jozef Rospierski b.1892 d.1944
3. Urszula Rozpierska b.1893 d.1968
4. Agnieszka Rospierska b.1896 d.?
5. Marianna Rospierska (dates unknown)

Jozef Rospierski

Descendants of Jozef Rospierski:

Jozeph married ???
They had a son named Antoni Rozpierski (He chose to spell his last name with a "z" instead of an "s".)

Antoni married a woman named Krystyna ???
They had the following children together:

1. Izabella Rozpierska, married named Burkowska

2. Wojciech or Wojtek Rozpierski (who married a woman named Barbara ___.)