Juskowiak and Aściukiewicz
JUŚKOWIAK: patronymic formed from hypocoristic (pet) forms of such forenames as Justyn or Józef (Justko, Józko)
AŚCIUKIEWICZ:patronymic probably formed from Aścik, a pet form of the mainly Ruthenian forename Astafij.
Valaria
WALERIA: is a Polish first name, the feminine verison of Walerian. They come from Latin Valerius, originally the designation of a Roman clan.
Swierczewski
ŚWIERCZEWSKI: toponymic derived from such localties as Świercze, Świerczewo or Świerczów (from świerk = spruce).
GÓRNICKI: patronymic from górnik (miner) = miner's son; or toponymic from the villages of Górnica or Górniki.