It may be possible that Mikolaj (Mykola, in Ukrainian), born 1894, may still have a son Lew/Lev (Лев), born 1927 living in Sniatyn.
Also, it may be possible that Michal (Mykhail, in Ukrainian), born 1896, may still have a son Teofil (Теофіль), born 1929, living in Sniatyn.
There are Laszkiewicz (Polish); Lashkevich (Ukrainian); Лашкевич (Cyrillic), still living in Sniatyn.
There is only one Proskurnicki (Polish); Proskurnitskyi (Ukrainian); Проскурницкий (Cyrillic), living in Sniatyn... Mykhail (Michael), son of Ivan (John), born 1959.
There are Nowozeiuk (Polish); Novozheniuk (Ukrainian); Новоженюк (Cyrillic), living in Ukraine, but none listed in Sniatyn.
Hope this helps someone!