I'm also looking for info on the Capp family.
My great-grandmother was Nancy Capp, married to Michael Alexie/Alixie/Alexis. The were Ruthenian/Carpathian/Galician and Nancy died during or shortly after my grandfather's birth. Her husband's first and last name changed throughout public records.
In fact, her husband's first name may have been Nicholas, not Michael; my mother remembers her grandfather's name as Nicholas, but all records state Michael. The last name changed throughout the years.
I don't know if Nancy immigrated with her husband, or married after being in the US, or where she lived after immigrating to the US.
This is all I have on them. Have you found anything?