- Ukrainain Wikipedia page is quite informative (worth google-translating), - mentioning 1043 Jewish population of town's 4939 (in 1884), - and still existing (?) old Jewish cemetery (about 1000 graves?).
Nowadays Ozerna is quite well known - thanks to most popular for-drivers-cafees on Lviv-Ternopil highway - can be spotted by number of big international trucks always parked on a wayside.
- info about metrical books in Lviv archives seems to be correct - one of my Jewish history books - mentions 4 of Ozerna (births) - dated 1876-1942. This week I'm working with other research there - may check years of each exactly.