sinbaje, this is why I appealed to the forum. I knew there'd be several smarter and/or more knowledgable people able to help me. The whole genetics thing is still way over my head, so I hadn't thought that Lola's mom COULDN'T be behind Booger (although yodeldogs may have explained this to me a dozen times and it didn't sink in yet)… Lola's mom was brindle I think. I know I was shown a picture of a brindle that was one of her parents anyway.
The breeder's name is Carrie from what I remember. Her son's name is Destin Brown, and that's what her dogs are currently registered under (or Booger's & Lola's litters were anyway).
She lived in Calhoun, GA (for all I know she's still there, but it seems she sold all of her basenjis after I explained Fanconi to her), and I know her sister helped her raise litters at her own house as well, so her sister might be named Tammy.