Yes, that's right, Traude! Shall I just tell the name of the grandmother who is the character? Maryam Yazdan, who came to American from Iran in an arranged marriage.
So you and JoanK ought to Flip for who does the next one.
Here's a little more about this novel (with help from reviewers on Amazon)
Author: In her novels, there is often a Baltimore setting, a focus on family drama, a woman who suddenly find herself a stranger in her own life, and a host of unforgettable characters that jump to life off the page.
Digging to America is no exception; however, Tyler adds a number of wonderful new ingredients. The new ingredients are cultural differences, cultural assimilation, and an endearing Iranian-American character who finds herself a stranger, not only in her own life, but in her adopted country as well. There is an intriguing additional ingredient for those readers who love to get inside the minds and lives of authors: this book has strong autobiographical overtones, as Tyler's late husband was from Iran (which I'd not known).
Character: The Yazdans are an Iranian-American family who exhibit most of the archetypal cultural hang-ups of that particular ethnic subculture. Two different families are drawn together by chance at the Baltimore airport, where each family comes to collect its newly adopted baby daughter from Korea. Thus Maryam Yazdan becomes a grandmother as her daughter adopts a Korean girl.
I loved this novel and hope you do as well!
Happy 4th of July!