How do I separate a person into two people without messing up the temple work?

A Harris

Person A was created as the spouse of person C. It was later discovered she also had person B as a spouse. However, someone added Person D as her spouse because Person A has the same name as Person D's spouse, who we will call Person Z. I need to detach Person D from Person A and create a Person Z with the same name, but different information and then attach her to Person D. However, Person A was sealed to Person D in 1973, and person B in 1989. This is before FamilySearch, so is there a way to keep the ordinances for both Person A and Person Z? There is no one to unmerge here that would change the circumstances.

gasmodels .

you mention you cannot unmerge - this would imply that the records were combined in new FamilySearch before Family Tree was released. There is an article in the help center that describes the process that should be followed. It does require an escalation to a dedicated group that resolves these type of issues. Please carefully review the article below:

https://www.familysearch.org/en/help/helpcenter/article/how-do-i-fix-a-merge-that-has-information-from-multiple-people-in-family-tree