Hi again, Jim
Have you read the book "Around the Four Corners" written by Ethel Elliott Chappell in 1971? It covers a lot of history in the area you are asking about. For example, it states that after Father Hynek's health failed the church became a mission of the Birchwood parish until the start of WWII. There were no services after that because cars and better roads enabled the people of the area to get to St. John's church more easily. The rectory was sold to Eugene Guggemos who wrecked it carefully and built himself a house out on the county line. In 1944 the church was sold to Ray Schumann who dismantled it carefully and used the lumber on his farm. The painting of "Our Lady of the Mount" (the name of the church, which was named after their church in Bohemia) was sent to the Benedictine monastery in Lisle, Illinois. This painting was of the original church which was painted by a painter from Rome. Some of the Pribram families joined together and sent for a copy of the painting and hung it behind the alter of their new church.
There is no mention of Zalabak children, except in a story about a hermit (David Tainter) that lived for 31 years in the woods near Birchwood. The story states that Jim Zalabak and his adopted son, Joe, would take provisions to this man on a regular basis. Mrs. Zalabak would bake cakes for this man to feed his "pets" (the hermit allowed squirrels and chipmunks in his house and they would eat the cakes at the table with him).
Along with the church, rectory and school, a large house was built for Zalabaks to live in and to be used as a boarding house for those who came to the Pribram community until they could find or build homes of their own.
I hope this info will back up the info that you already have. Good luck with your research.