Need to locate littermate dob 3/25/03 Ohio

[Cami]

I am seeking the whereabouts of Cami's littermate, date of birth 3/25/03. Breeder's father got into breeding and used her dogs for breeding. I don't know where he was located but she ended up with the 2 surviving pups in Columbus, Ohio.
Female, fawn with white markings. I can remember that she had a ring of white around her neck.
I don't want to give the breeders name but we were told that there were 7 total in the litter but 5 died because of lack of care.
I have found out additional health information that I want to offer to the owner of the only other remaining pup.
I have tried contacting the breeder, as well as the AKC and I can't get anywhere. Hopefully the owners have found Boxerworld.
The breeder listed the pups for sale in The Columbus Dispatch under the title "Flashy Fawns, AKC registered, Champion Bloodlines"
If any of this sounds familiar please PM me ASAP.
Forgive me if this is not the correct forum OR if what I am trying to do goes against Boxerworld rules. I couldn't find anything related to this topic in the rules section. I am only trying to offer help to owners that might not know things about these pups, I don't want to get anyone in trouble....purely health-related information, but not life-threatening.
Thanks,
Susi