One person is on both Trusted Lists, so he can complete the merge. Looking at the father's profile, I think the problem is the PMs don't know which mother is correct.
I think the merge should be completed anyway. If the maternity question can't be resolved, she should not have a mother connected. Add explanation in the biography.
Also, Clawson-537's needs a cleanup, to get rid of the useless 'S' numbers and duplicated sources.