After reviewing the book, "The Ambler Family", by Louis Ambler, I have found that there are NO children listed for Decimus Fitz Ambler. Many people have on their trees "Thomas Ambler" as the son of "Decimus Fitz Ambler". The book does NOT list ANY children for Decimus. There is another man named, "Decimus Ffilius Ambler" who owned land in Virginia. People are assuming this is the same guy. His middle name is different! Could "Fitz" be short for "Ffilius"? If so, is there another source more credible?