Both Mary Taber (Cooke) and Mary Taber (Thompson) had daughters named Sarah (Mary Cooke's b. 1671; Mary Thompson's b. 1674).
These seem to have been mis-merged -- and assigned wrong parents. After cleaning, they should be made MP's to prevent a re-occurrence.
In addition, the children of Capt. Thomas Taber need a bit of re-connecting to the correct mothers.
Perhaps Erica Howton can help prevent re-occurrences.
Sure! You actually need to check several on line compilers: Mayflower lines, Cooke descendents lines, and Taber lines, and ensure they use at minimum the standard Massachusetts resources: Torrey for marriages, Savage for families, and town VRs. You can google book into Torrey pretty easily.
I found these sites useful for the Mary Taber line:
http://www.mayflowerfamilies.com/cooke/d9.htm
http://freepages.genealogy.rootsweb.ancestry.com/~corey/fcooke1583/...
http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=GET&db=royha...