Kelby holds a Ph. D. in Plant and Environmental Science from Clemson University, with a research focus on urban soil renovation and root biology. He also holds a Master of Plant Protection and Pest Management, and a Bachelor of Science in Horticulture, both from the University of Georgia. He has been a member of the Bartlett Tree Research Laboratories team for nine years, beginning as a Plant Protection Specialist and Diagnostic Lab Manager. In his current position as Arboricultural Researcher, his key area of responsibility is research and public education in shade tree management and arboriculture.