I'll give a hand if you want, I have some experience doing this, My Chadwell, and Armistead lines were as mixed up, but there getting better.
First thing is to start finding as many sources as you/we can and post them on ALL the profile affected by that source, use sources that everybody can link to, that leaves out Ancestry.com, If you do find something there (Birth,marriage, death will, record just copy it to the profile, Facts are NOT copyrightable. Besides Ancestry steals from everybody else anyway.