I have seen several variations of the spelling within the same family. I am also trying to locate some information about a certain Cort Dannettel that imigrated in (1832?). His daughter married a Carl Bruning who then had a child Margaret.
Family legend has it that Cort was orginaly a Prince Von Roemling that took sanctuary with a Count Dannettel and his family. He then married their daughter and took their name.
If anyone knows anything about this family, please reply.