Thank you all! I appreciate everyone's comments, and yes, Anne and Victoria, I do subscribe to AmericanAncestors.org - would not attempt this without it (my personal plug).
I'm still working on a new biography, including Anderson's comments disputing the identification of Henry Knowles-1188 as identical with the man who sailed aboard the Susan & Ellen in 1635. (probably should remove the PGM template ?)
Maybe we need another profile for the passenger aboard the Susan & Ellen? Are we going to follow Anderson on this? (would like a consensus)
Also, it seems there is no evidence for the name of Henry's wife. Savage writes that Henry "had, I suppose, married a daughter of Robert Potter of Warwick." Savage does not disclose his reason for the supposition, and no other researchers (that I have seen) follow him on this.
So, unless someone has evidence for the wife's name, I suggest we create an Unknown Unknown profile as wife and mother of the children.
About the Ancestry sources, Rick, thank you for taking the time to link them. However, I hesitate to include them, as sources with Uncertain information (and in this case, disputed and/or unsupported). The suggestion was (previously ? cannot seem to find it today) that in pre-1700 profiles, we should remove user-contributed, if there is a better source cited. Are we still doing that?
Thank you again to each and every one of you - and in advance for your thoughts and ideas on my additional questions.
22 Nov 2017 edit: typo