Mary (Unknown) Mansfield is currently attached as a spouse of Joseph Mansfield. However, my research on Joseph has found no such spouse for him. Normally I would try to place her where she belongs, but her profile is orphaned and is basically empty - no dates, sources or family members. Cutting her loose to drift alone in the WikiTree sea seems cruel and untidy. I assume she should be merged away somehow, but that seems quite difficult to do with no information.
I received a private message from Eddie King, who wrote: "detach her as a spouse and merge her with Joseph's daughter Mary."
This seems to be the best idea since both profiles are orphaned, so I can handle it all myself. Thanks Eddie!