You might like to read the links Jim posted here:
For the long-lasting relationship: even if people never formally married, they can be recorded as spouses on WikiTree. For the marriage date, a known or estimated date for the start of the relationship can be used if available, or an explanation can be given in the biography. See this authoritative answer from Jamie Nelson on 9 December 2021: If the people considered themselves married, then they can be attached as spouses in WikiTree even if they weren't officially married. Just explain the lack of a date in the biography. Similarly Jamie wrote on 24 September 2022: If they considered themselves as spouses, you can still add them as married even if there wasn't a formal ceremony. Just make sure to explain things in the biography.
For the long-lasting relationship: even if people never formally married, they can be recorded as spouses on WikiTree. For the marriage date, a known or estimated date for the start of the relationship can be used if available, or an explanation can be given in the biography. See this authoritative answer from Jamie Nelson on 9 December 2021:
If the people considered themselves married, then they can be attached as spouses in WikiTree even if they weren't officially married. Just explain the lack of a date in the biography.
Similarly Jamie wrote on 24 September 2022:
If they considered themselves as spouses, you can still add them as married even if there wasn't a formal ceremony. Just make sure to explain things in the biography.
See the following G2G Link for a prior question which was answered on the same subject.
