It's funny, I didn't know there was another Juan Pablo Yamuni around the world (Hannah Bolus means Juan Pablo, or John Paul).
I live close to the that area. I live in the Peninsula, in the Silicon Valley. Work in Palo Alto, and live in Sunnyvale. Just me and my wife Susana. The rest of the family is in Los Mochis, Sinalos, MEXICO, where all the Mexican Yamunis are.
I would love to meet your family. We may be related. At least we know that all the Yamunis came from the surroundings or Lake Yamuni (or Yamoune, Yamouni, Yammouni, who knows).