Ticker said:CS, Did you ask Gilbert Wild who it could be? or go to their web-page and see if you could find one similar? 
No, I did not ask GW what it could be. I just told them the plants were mis-labeled, and they readily provided credit toward a future purchase. I have their 2014 catalog, which I used to order the mis-labeled plants. The only logical match from the 2014 catalog, based on color and bloom time, would be Scarlet O'Hara. However, if the mix-up could involve peonies not sold that year, I suppose there could be other possibilities.GW is such a large grower, investigating could be a daunting challenge.
I am curious about your question; i.e., whether asking GW might actually be informative. I had assumed that since they have a reputation for mis-identifying plants, they would not be much help. In your experience, would that be a poor assumption?
