Unknown Mother of Remember Munsen is Elizabeth Munsen (Sparke)

I found two tree matches between 'Unknown Mother of Remember Munsen', and 'Elizabeth Munsen (Sparke)'. The dates, children, and heritage all line up, but the names and merging are locked. Thank you for any help with this
the only link that's working is Remember Luce, the daughter of this woman whose identity I'm trying to resolve.
Thank you for any help