Polish archives online: http://www.szukajwarchiwach.pl/
Other Polish sources: http://kresy.genealodzy.pl/
Family Search Lithuania collection (Vilnius diocese): https://familysearch.org/search/film/007792504?cat=1548059
Pasvalys and neighbouring RC parishes records: http://www.pasvalia.lt/
Zarasai parish RC church records: http://www.krastotyra.zvb.lt/lt/metriku_knygos/zarasu_baznycios_met...
