He likes to depict items that old West people might have used. Hendricks began painting when he was nine, and helped on his uncle's ranch during summers until he got a job as a trail guide at age fifteen. During World War Two, he served in the cavalry in Europe, and then worked as a saddlemaker until 1955. He received a degree in mechanical engineering from the University of Arizona, and from 1959 to 1968 worked as a technical editor for a publication and engaged in painting as a hobby. Source: Harold and Peggy Samuels, Contemporary Western Artists