Hi! I'm afraid there are no Middleton's on this pedigree. I do not know what the difference is but it says on this newspaper (where the pedigree is published in) that "It has not before been published, and will be new to readers." I know it was dated in the mid/late 1800s to early 1900s. It says that the tree goes to the living decendents in this tree and the last entry is in 1860s.