Yes, makes sense to want to pass on good genetics and your birds are beautiful! I like her all three of them are loud a noisy. The strange thing is. The 3 rd hen who is not laying is a tad bit prettier then the other two. I for sure thought she would be my first. Haha, I'll keep her though. Thank you for your help. I'll just wait... I have enough producing right now. Thanks again Fred !I am still learning on the true bred, Standard bred Rhode Island Reds. Kind of you to say good words, but that's honest the truth.
Your question rightly belongs on one of the generic threads on Flock Keeping, but I'll be glad to tell you that there isn't anything you are doing wrong.
Even with hatchery based stock such as you have and no matter the hatchery label as to what they say they are, some birds, as individuals simply take forever to mature. They can even take until 36 weeks to begin laying.
As a flock keeper who just wants backyard eggs, this is frustrating, but once such a bird begins to lay, you're happy.
As a breeder, any female who doesn't begin to lay until much, much later than her hatchmates? That's a cull for breeding purposes, at least here on my farm. I wouldn't want to pass on slower and slower and slower development. That's not a positive trait here.
Hope that helps.