Tobacco Workers Conference.

The Tobacco Chemists' Research Conferences began in 1947. It has met annually every year since then. In 1998 it became the Tobacco Science Research Conference. A separate conference, the Tobacco Workers' Conference, began in the 1940s (perhaps 1941, based on the conference numbers), and meets biannually.

From the guide to the Tobacco Science Research Conference Papers, Bulk, 1947-2002, 1947-2008 (Bulk 1947-2002), (Special Collections Research Center)