Les Stark is a Pennsylvania hemp historian who has spent thousands of hours researching the historic Pennsylvania hemp industry. He has documented the existence of hundreds of hemp mills throughout the state and uncovered an epic tale of the days when nearly every farmer in the state grew hemp.

Since 1997 he has been teaching this information to farmers, farm organizations, historical societies, community groups, the media, weed, legislators and the general public. He is the author of Hempstone Heritage

Les served in the U.S. Marine Corps as a tank crewman on the M60A1 tank from 1984-1987.