The second row of plaques seem likely to be Carr. N.B. these plaques appear with the 'LONDON' impressed mark. Of the list of potteries that used the London mark, Carr seems the obvious choice. In my July 31st blog post, I established a link between this 'group 2' plaque form and the larger plaques commonly attributed to Carr.
So perhaps sometime around the 1860s Carr bought the transfer plate from the pottery that made the bottom left plaque, and used it to make the last two plaques.
You can see now why I've put off writing this post so long. Clear as mud!