Your guesses look correct to me. It seems they have a variety called Black Red that can be either wheaten or partridge bred. Spot on to what you said!The varieties of your type of OEGBs are different than the varieties I am used to, but I think you have a wheaten and a partridge. If the cockerel had chipmunk down as a chick, he’s a BBR. If he had yellow down, he’s a wheaten.
@Rhodebar Lover are you familiar with UK OEGB varieties?