I had a look at the two profiles. There are a lot of differences. Different LNAB. Different Birth dates and locations, Different death dates and locations. Its not a merge as it stands now until/unless those things are resolved.
There is a PM on Palmer-268 and they are the ones that requested the merge, the Puritan Great Migration Project is involved in the other. The merge was requested today. The Project and other PM's have a month to respond to the request, from today.
So nothing can be done by anyone else at the moment, its up to the PM's.