Lamb was a graduate of Tennessee Tech University, Lamb started his career with the agency in Bradley County in 1992 and moved to Fentress County in 1999. He loved Fentress County and its residents and considered it home.

Lamb was well known in the county and was a member of the Jamestown First Baptist Church. He taught hunter education and was known for his woodworking skills. Lamb was also known for his craftiness at PIG, a card game he played at the Forbus General Store in Pall Mall. Lamb held the title of world champion for a year.
Considered a true game warden by his coworkers, Lamb enjoyed his work especially the walleye run and deer season. He was also an avid outdoorsman, hunting and fishing with his son. Lamb received a total of six “Officer of the Year” awards on a district, regional and statewide level. Regardless of these and other awards throughout his career, Lamb considered his family his greatest achievement. He is survived by his wife Brenda, son Silas and daughter Kathryn.
Lieutenant Tim Singleton shared, “Doug had a passion for his career. He didn’t consider it a job. He managed the most difficult tasks of a wildlife officer, that is balancing work and family. He cherished both.” Major CJ Jaynes added, “Doug was a firm, but fair wildlife officer that enjoyed the profession. He will be greatly missed.”