Mary Bratner married Christian Poffenberger (1792-1857)in Washingrton Co.,Md. They had eight children and migrated in 1826 to Franklin Co., Ohio. In 1839 the family moved to Jefferson Co, Iowa. See: Thomas Poffenbrger, "From Germany to Antietam, The early history of the Pfaffenberger family, Second Edition, Xlibris 2003. Best source: Xlibris,com or 888-795-4274. Also Amazon.com.