Thank you for answering so quickly. Well, yes I do have a lot about my grandfather, Peter. I was hoping to find out more about Miriam and his family. I have done searches on Ancestry, but, I too am unable to find anything out about Miriam. In order to find out more, I guess I would need to write to organizations in Iran. I don't know if Marahuma is her married name from her second husband, or her maiden name? Also, I don't really know my Great Grandfather's first name. I may be unable to really pursue his side of the family. Thanks, anyways.
(You know that even with a tree, one can have difficulties.)