Preston joined the Noble Research Institute in 1997.
Currently, he serves as an agricultural technician in the farm projects group, which builds and maintains fence on all Noble Research Institute farms. He also helps the group with general farm construction.
Before coming to Noble Research Institute, he worked on the ranch he grew up on north of Dickson, Oklahoma. There, his family ran about 150 cow-calf pairs and operated a thoroughbred horse breeding and training facility.