Great grandfather Barthlomeij Kusy married Mary Falandysz. Both born 1870-1875. Barth came to the United States in 1900, Mary followed a few years later with children Agnes, Joseph and Frank, settling in Dunkirk, NY. Barth's parents names are Joseph and Victoria Kusy. Mary's father is Michael Falandysz. Surname may be Kusa, as on ship manifest, but was spelled Kusy in the US. A number of Kusy's were from Sarzyna, born about 1870-1880, some may be brother or cousins. Same with Falandysz, so suspect a local connection in Sarzyna.
Unfortunately, records difficult to come by. Not certain if records would be at Lubelski or Lwow (town was part of Lwow state before WW2). Noticed many Kusa's and Kusy's in the Lezajsk county, over 100 of each.