The truth to the matter of finding ones roots, alot of research and obtaining verifiable records and actual photos, documentation such as birth, baptismal, wills, census, ships logs, burial tombstone/markers with cementary records, property ownership, Military and payroll records and some other means. Most people can easily go back 3 or 4 generations. Prior to the Civil War tends to get tricky while working towards the Revolutionary War. For the most part the United States has the best records because of the shorter history as a Nation versus the Old World. In Europe, there has been many wars, fires, droughts, very old buildings that allowed records to become destroyed or rott. Much has been lost in the Old World because of conditions that existed during the era. Please do not overlook the fact of Literacy (how many people had Education) ability to read and write, let alone how to properly store important records. "Elder" John Crandall is only known by his Deeds here and eventually establishing Recognition which his Family continued for a few generations in the state of Rhode Island. His actual arrival to America and where he came from in England not known. By-the-way, No DNA test can determine who your ancestors are. DNA can only be compared to another living person who is known to be a descendant of somebody. On a Religious note (depending on Ones Beliefs) we are all related. Adam and Eve. The world is as one !
I have been working on my family tree for over 2 year. My relatives started documentation at family reunions in the 1950's. In the 1990's one of my Mother's relatives paid a certified Genealogist Specialist which only was One Leg/Branch of the Tree following her Maiden Name to my 4th Great Grandfather born 1757 and fought in the Revolutionary War. I been tracing the other Leafs/Branches of the Tree (meaning various/numerous Surnames) which connected me to John "Elder" Crandall born about 1612. I have followed his son Joseph "Reverend" Crandall wife Deborah Burdick a very long ways back. Sure I would like to think of myself as a descendant of the " de Vere " family and that of John de Vere (15th Earl of Oxford) and many other sorted ancestors. The Family Tree is only as realistic if you have PROOF to back up your claim, otherwise it's primarily fiction. One can only dream being Famous or that of Royalty. Furthest I have gone is 25 Generations performing many cross-references/ research that usually is UnReliable (no facts I am aware of to support my linkage). It's FUN and very time consuming. At least I am positive about One of my Ancestors, even though it was approx. 260 years ago. I sincerely wish everyone could in FACT know everything about their family history/roots. Good luck and have fun.