Hello James. Although I do not find your Peper family in the Die Maus Lesum database, there are Peper family members in that database. Here is a link to the free databases on the Die Maus website:
http://www.genealogy.net/vereine/maus/datenbanken/index.php?...You should check all of the databases, not just the one for Lesum. If you do not find your ancestors in any of the databases, write to me again. I know someone who may be able to help you.
Best Wishes,
Valerie