Paul Harter is a native Arizonan whose interest in minerals was fostered by his grandfather, a mining engineer, who graduated from the University of Utah. Family trips always focused on mines, minerals and geology with a primary focus in Arizona and Utah. His great uncle was the noted author A.B. Parsons. Paul first competitively exhibit at the Arizona State Fair in 1958 and has continued to do so. Since that time his collecting interests have expanded to also include extensive field collecting. For five years he served as the Show Chair for the Tucson Gem & Mineral Show. In concert with Bryan K. Lees, he co-authored the chapter in American Mineral Treasures on the Sweet Home Mine. His collection focuses on minerals of Arizona, with other smaller sub-collections.