> make sure that Mary, daughter of Robert Stephens, really was the correct individual

Sorry but I have not researched Mary STEPHENS at all.
I also have not verified the marriage info.
But at least you have a clue to follow now
I would go with the process of elimination until
you actually do find the correct marriage record.

I also think that this Andrew REDMAN may have married more than once
although I don't have any other wife's name.

I believe Cassie also had children
John, Flave, Lucien & maybe Eleanor.
Can you please share any spouse names for these children.

I actually would like as much info as possible on this family
so I have more leads to follow up

Please let me know if you have any webpages that outline your family genealogy.

Thanks,
NICOLE