Janet, while I can't give you any specific information about your ancestors, I can offer a bit of advice. Always start from what you know and go backwards from there. You know the grandparents divorced, so perhaps you could find those records. Do you have birth, marriage and death records for the people you name? There may be clues in those documents. Check census records at a local library with a good genealogical collection, or through a LDS Family History Center. Take a look at Rootsweb's Guide to Family Trees http://rwguide.rootsweb.com/
- lots of good suggestions there. And, perhaps most important, be persistent, think creatively, and don't give up.