I have been doing family tree research for a couple of years for the village of Chystohorb(Czystogarb now in Polish)
I have found all the surnames from the years 1770 -1860
There are in the church records of the Greek Catholic
Church a few Latanyshyn and Titkanich.
Also in the surrounding area villages of Komancza,Jawirnyk
Wislok and Radoczyce.
I was there last summer and the summer before.
I am organizing a small restoration of the old cemetery
and putting a monument in Chystohorb where the church
St. Micheal the Archangel once stood before 1944.
Let me know if you would like me to send more info and I also have some pictures.