I have your family on my database. I'm working on getting a Muckleroy from our line to submit DNA to FTDNA. I don't have ANYTHING proven further back than John & Francis of Baltimore Co., Maryland
There are a lot of "guesses" out there on the internet. I have a lot of theories myself, but from dependable sources, I have not found it. I'm working on trying to prove Francis' ancestry. I see several names suggested, but the documents I have are not definative. I copied several documents from Microfilm at the Archives (in person)in Maryland. They are hard to read. I do have a 24" monitor to enlarge them on, but I still am not sure.