How old was the youngest person to summit Mt Whitney taking the Mountaineers Route?

As of my last update, the youngest known person to summit Mt. Whitney via the Mountaineers Route was a 10-year-old boy named Jordan Romero, who reached the summit in 2009. This achievement was notable as Mt. Whitney is the highest peak in the contiguous United States and presents significant challenges even for experienced climbers. Keep in mind that records may change, so it's good to verify with recent sources for the latest information.