Deborah, the book is titled "From Germany to Antietam" by Thomas Poffenbarger. Our Elias is featured on page 124 in the story text and page 223 in the appendix. He is given family #A6512. His story also agrees with a book in the Washington County, Maryland Library called "The Poffenbarger" Family by Georgianna Randall. Both books trace the family back to Rhineland Germany. I ordered the first book from Amazon, and have since ordered another for my cousing Robert. The second book is out of print, but the libraian at Maryland happily copied a few pages and faxed them to me, no charge.