After some research, I think I’ve traced the marriage of my great-great grandparents, Frank Zalewski & Anna Lindner, to Parafia św. Barbary w Świętem (or the Parish of St. Barbara at Święte.) According to a translation of their Polish Wikipedia entry:
The parish was founded in about 1300 by the Teutonic Knights. During the Thirteen Years’ War the church was destroyed and the parish declined. The present wooden church was built in 1723 on the land of the owner of the village – Waclaw Kozlowski. The last thorough renovation of the church took place in the 1990s.
Also according to their (wonderful) website, this church is the largest wooden structure in the area and one of the largest in Poland.
Their website has a great photo gallery of the church, inside & out, including the adjacent cemetery. They also have a very cool gallery of the cemetery on All Saints Day, November 1st, 2011. The photo above is from that gallery. Click on it to view more photos from that day.
It’s very cool to see the actual church from across the world that your somewhat distant ancestors were married in and baptised some of their children in.