@vehve
Your confusion is caused by me as I was discussing white birds and birds that lay colored eggs.
After pouring over my egg records, there is a pretty good probability of the great legged birds being Bresse. Nothing else I have fits the description and the age is right.
I will put all the other white birds in together and monitor egg production. If I get a brown egg from them I will separate them until I isolate the "has to be a white rock with white earlobes from a hatchery".
I will be on the hunt for true Rhode islanders as I want them for sex links. The Bresse I may just keep for personal eating.
I have to concentrate on Australorps, Orpington, Jersey Giants, RIR, Barred Rocks and easter eggers as these are my main market.