American teacher, writer and lecturer of "Personology," a study of a person's character as interpreted by their physiological characteristics. Along with his partner, Gordon Stokes, developed the "One Brain" system, designed primarily to alleviate dyslexia and related learning disabilities. Their Three-In-One Concepts, gradually expanded into a world-wide organization, addressing emotional and physical blocks to well being and performance enhancement of every sort, with trained facilitators of the work found in every major country in the world. His books have been translated into a dozen languages, and he still travels extensively, as well as teaching out of the home center located in Burbank, CA.
An only child, his mother catered to young Daniel's voracious appetite for information by buying him volumes of the classics and every type of book from a young age. Both of his parents, Robert and Elizabeth Holt Whiteside, were heavily involved in personology, opening a center in San Francisco in the 1950s and working with thousands of people. Daniel ran their Institute of Personology for awhile before and after a stint in the Navy. He met Gordon at the Institute and they became fast friends. Gordon ran the Touch For Health organization for John Thie for 12 years before leaving to begin Three-In-One (the integration of body, mind and spirit into a working whole) with Daniel.