Don't despair Karen, Ancestory.com could be wrong!
Years ago I submitted my genealogy to that website. It wasn't long before others were taking my ancestors (and my years of work) and putting them into their family trees even if there wasn't a fit. I even went so far as to email some of these people to inform them of their error but it did no good. I have always documented my work and where my information came from, not only to credit those sources, but to correct errors/changes if they should come up. No one on that site, including the host (Ancestory.com), cares about accuracy or verifying the sources; it's all about filling the branches in your family tree at $20 a month.