I need help finding a horse through the AQHA.?

I am trying to find a horse I use to own. She is a reigistered Quarter Horse. La Osas Peppychex. I wasn't sure if I could find some who has a membership through AQHA and they could look her up. Also, I didn't know if it will give her current owner's name?

Thanks in advance.
Update: Yes, she is the mother of Peppy Chex Your Guns. She was "my horse", but I was around ten at time. My parents owned her and all of colts. They then sold her. It's not possible for me to ask them who she was sold too..... I would like to contact her owners and offer to buy her.
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