Genealogy / tracing my family roots- the surname Tarasiewicz? [8]

I am tracing my great grandmother, Petronella Tarasiewicz, as well. She was born on June 17, 1882 in Sejny Poland. She came to the USA in 1906 and was married in 1907. She lived in both Maynard and Lowell Ma.

Sejny is not that far from Augustow. Do you know what Parish would have the records for either Augustow or Sejny?

Jeanne