Oda,
You wrote that you were searching for Holst in Lubeck. Is that Schleswig-Holstein? My father always said his grandparents cam from Schleswig-Holstein but I found they were born in Mecklenburg. However, they did live near Hamburg at one time. If you saw my post on this list can you find any connection. If you did not see it, I can send it to you.
Phyllis Smith