Need help with “Wives And Daughters” by Elizabeth Gaskell?

In chapter one, Mr. Gisbson went to ‘the Towers’ to seek Lady Comnor’s ratifying her husband’s invitation to Molly:



He saw his patient, gave his directions to the housekeeper, and then went out, with a rare wild- flower in his hand, to find one of the ladies Tranmere in the garden, where, according to his hope and calculation, he came upon Lady Cumnor too--now talking to her daughter about the contents of an open letter which she held in her hand, now directing a gardener about certain bedding-out plants.



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What does ‘he went out to find one of the ladies Tranmere in the garden’ mean?

What is ladies Tranmere?

Need help with “Wives And Daughters” by Elizabeth Gaskell?
Based on that excerpt I would say Tranmere is the last name of two or more ladies.

For instance if there are two or three Lady Tranmeres then he was looking for a least one of them. It would be similar to saying "one of the brothers Grimm" or "one of the presidents Bush"

It's awkward in today's English but I've seen that sentence structure before.



The only thing that makes me hesitant to read it that way is I cannot recall anyone named "Lady Tranmere" in the story. I never read the book but I've seen a miniseries adaptation on TV.

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