I looked at a few papers just recently (out of the many boxes of my father-in-law's stuff), and my husband's grandfather turns out to have been from Adamivka, now in Zhytomyr Oblast (about 130 miles from Kyiv).

I am glad you have that information.

If I have done the Google mapping right, your mother's grandparents were, well, not close, but not madly far away from there (roughly 130-375 miles).

I am beginning to feel it is an even smaller world than the usual Ashkenazi one.