Yefim,
Thank you so much for your response.  Your suggestions give me a starting point as  I didn't know where to begin.  I do not have any postcards, letters, or anything like that.  Thanks to digitalization, I have found out more than my mother ever thought I would about her family.  I am eager to continue my search.
Thank you to this forum as a way to reach out to others who have more knowledge and expertise where to go than I do.
Terry Manassee