Hi there,
I saw your post on Adam Eckert I don't know if I can help, but my relatives came from Canada. The research I have done and what has been sent to me seems to suggest that Ecker/Eckert/Eckardt are all variations of the same name. I will check what I have see if I have a Adam in the files. I recieved e-mail from a Eckert in Canada recently will check her files as well. I have been told a story about some Eckers who moved I think from Canada to the US and were lost to the Ecker clan maybe there is a connection.
Looking forward to hearing from you