Actually, there are TONS of "source documents" about the history of baptistic groups who existed completely outside Rome. A couple of sites with compendiums:
http://www.reformedreader.org/history/list.htm
http://www.wayoflife.org/fbns/fbns-index/historyfbns.htm
http://www.wayoflife.org/fbns/fbns-index/waldensianhistoryfbns.htm
I urge all readers to explore these. Some sources from the last two are not linked, being on a purchaseable CD, but for individual users (i.e. not mass mailing, hence, remaining within fair use), I will be happy to email the text of titles not linked.
The first known Baptist Congregation was formed by a number of these fleeing separatists in Amsterdam, Holland in 1608.
Oh my this is an enjoyable thread. LOL
Cool. Can you then show us anything that approaches a place where the unbroken and unaltered Truth has been taught from Apostolic times until now? Can you name the pastors or other leaders of that group from 77 AD until now? Can you show that their practices are the same or consistant with your practices today?