This is my family as well. As with most families there is much that is lore and supposition. There are may researchers working on this family and much has been written. I have not worked on this line for a while so don't have details in my head but will take a look. My Isenbergs landed in KY. My ancestor was Lydia Jane Isenberg. There are still family in KY.
There is a myfamily.com site for this line.