| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Ludwig Genealogy: Sketch of Joseph Ludwig, Who Was Born In Germany In 1699, and His Wife and Family, Who Settled At Broad Bay, Waldoboro, 1753 | 978-1-5O42-5O98-6 (1-5O42-5O98-2) | 2014 |
M.-L. · M. Ludwig · m r · R. L · R. Ludwig · Sergey Makarov Reinhold Ludwig