The RIR was in the works way before the Buckeye and was always a far superior bird to the Buckeye. That's just history. The RIR development history is perhaps the single most engaging of all American breeds. It is well documented.
A thought, too, is to remember all of the immigrants that are our original chickens. A lot is made of American breeds developed here, but before them there was a strong presence of breeds that shaped out poultry food supply for many a decade before these were even on the map: Games, Dorkings, Hamburgs, Spanish, and Polish. Then there came the Brahmas and the Cochins. They're not classed as "American" breeds per se, but they are more American, in the sense that they have contributed more to the American poultry landscape, than a number of the breeds classed as American.
While I agree with you that the RIR's development was in the works way before the Buckeye, I respectfully disagree that a RIR is a far superior bird (and that is "just history). Although for years the Buckeye was omitted from the SOP when it fell to near extinction, I refuse to allow the Buckeye to simply be a footnote in the American Class breeds. The Buckeye serves its role as a dual purpose fowl well. I have the advantage of the creator of the Buckeye own words. The creator of the Buckeye was a single individual, Ms. Nettie Metcalf. She never aspired to show the breed but her objective was utility qualities -- this objective I believe Metcalf fully achieved. Metcalf admitted that the Buckeye's "great beauty . . . in the future more show birds will be produced yearly." Again though, showing was not her objective.
She obtained, raised and showed RIRs too. In fact, Metcalf was the first to introduce RIRs into Ohio. However, Metcalf knew nothing of the RIR development back East when she created the Buckeye and in the beginning called her birds, "Buckeye Reds."
When Metcalf learned of the RIRs in late 1896 in an article in the
American Agriculturist, she corresponded and exchanged eggs with some of the RIR breeders of the day. She found that the RIR were "bred to a lighter shade of red." She even described the RIR at the time of APA admittance as being "sorrel" in color. At the time, she had Buckeyes that were both pea comb and single comb. The RIRs were rose and single comb. She tossed her single comb (SC) Buckeyes and bred them to the RIR. The first Buckeye had superior color to the RIR, and Metcalf "never liked [the RIR] well enough to mix them" in her Buckeye breed. Particularly, she was keen on keeping the slate bar in the back of her breed. She put some of her SC Buckeyes/ RIRs in the shows back East. "All my single comb Buckeyes scored well under their [RIR] standard in the shows and were made use of in leading yards down East." Metcalf's rose comb RIRs scored well in shows too (92.5 to 95.5), but she said her 95.5 point RIRs "were almost buff to my thinking." Metcalf said, "I did think inasmuch as I had helped make the RIRs by an infusion, however slight, of Buckeye blood, I would undertake to get them admitted to the Standard at the same time as the Buckeyes, so fitted up some fine birds for the Cleveland show in 1902, both Buckeyes and S.C. RIRs, which was the first official showing of either breed."
The RIR has changed color drastically over the years since their creation and are no longer the lighter color they were originally. Contrastingly, the Buckeye is still the color it was originally created & has not changed one iota. This may be the connection to the past that inspires Buckeye breeders today. Today's RIR is a darker bird than the Buckeye, but this was not always so.
Did Buckeye color influence RIR color in the early years? Although Buckeyes are still supposed to be the color they were originally, but RIR is no longer a lighter color, but darker than the Buckeye, then how is this fact impacting the SOP interpretation of the color of the Buckeye today?
The Buckeye has never been wildly popular nor did it sustain the U.S.'s populace with meat for dinner, but how many rare breeds did? However, the Buckeye has survived as a breed and against great odds virtually unchanged since its creation. Today, the breed is flourishing. This is due in large part to the focus of the ALBC (now Livestock Conservancy) for the breed's recovery and to some very dedicated new breeders.