I previously posted a help request for Dolginovo trying to find some great aunts/uncles, no such luck.
I believe that two of the siblings Yaakov Kamenetsky (famous rabbi who moved to America) and his brother Haim-Zorach were both born in Kolosova which is present-day Ukraine.
However Kolosova is not easy to find. On the off change that this is the same Kolosova located in the Kremenets region, would appreaciate any help. I have not conisdered using JewishGen to search for anything Ukraine related, but I am grasping at straws.
On the biography of Yaakov Kamenetsky it states 'Born in a small hamlet of Kolosova'...