George R. · George R. R. · George R Ryskamp;Peggy Hill Ryskamp · R. R.
Ancestry.com · Genealogical Publishing Company
| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| Finding Your Hispanic Roots | 978-0-8063-1517-1 (0-8063-1517-2) | 1997 |
| Finding Your Mexican Ancestors: A Beginner's Guide | 978-1-59331-307-4 (1-59331-307-1) | 2007 |