Yes, I personally think they should be merged into Hannah Brown (Anderson spelled it "Brown," but the existing profile is Browne). This is a new situation for me, one in which Anderson seems to believe a theory which has no real proof - and has not been discussed in a journal article (if so, it would probably be since 1995, and I haven't found it). As a Puritan Great Migration profile, I think we would be following Anderson here. There could be room for disagreement though.
Seems her mother should be Dorothy Unknown. Anderson shows Dorothy ____, and I cannot find any evidence of Dorothy's parents.
I looked to try and figure out whether there was this Dorothy Kent, (and whether we ultimately should detach her from husband John Browne or just change her name to Unknown).
I did find some information on the Humfrey Kent-380 who is currently shown as Dorothy's brother. His father's name was John Kent.
Nothing showing that John Kent had a daughter, or that Humfrey had a sister. Seems that Dorothy Kent is currently attached to the wrong family, (?) if she existed. More research needed here.
Did I answer your question? (I think I didn't)