Donald R. Currey was a graduate student at the University of North Carolina at Chapel Hill studying the climate dynamics of the Little Ice Age using dendrochronology techniques. In 1963 he became aware of the bristlecone populations in the Snake Range in general, and on Wheeler Peak in particular. Based on the trees' size, growth rate and growth forms, he became convinced that some were very old, cored some of them, and found trees exceeding 3,000 years in age, but Currey was not able to obtain a continuous series of overlapping cores from WPN-114.