File https://familysearch.org/ark:/61903/1:1:XT6K-R1S lists John Mitchell's mother as Margaret Kynd. This is incorrect. It should be Margaret Hynd.
I am just another 'lowly' User/Patron ...
Further to what 'Julie' has already proffered ...
Here are some "Knowledge Articles", in 'FamilySearch':
I hope, that these may also help/assist, somewhat.
There are some indexes with some correctable fields on FamilySearch, but this one is not among them. Therefore, you can't really do anything beyond consoling yourself that the index served its purpose: you found the record.
Keep in mind that despite FamilySearch's upside-down-and-backwards approach (wherein "machine-parseable" is given priority over "genealogically valid"), indexes are not the data. They are merely finding aids for the data.
Many thanks Julia. This is very helpful.
Kind regards, George.
Thank you Brett. Such helpful suggestions. I am very appreciative.