"Also bear in mind that the National Archives has another data source for records that were never filed."

Hello. I was reading this part of your post.
As I have no idea what you mean, would you be kind enough to tell me?
I know that Tom and I have searched both high and low for Needham, as the old expression goes.
As Tom has done an outstanding job of chasing down leads, I have left that part of the kin search mainly to him. However, I have some others, I would be interested in learning additional information about.
So how would I do that?
Thanks-
Linda Temple Acrey