David Wier Sr., born Nov. 12, 1955, is a member of Local 469 at Madison, Ill.

Wier began his railroad career in 1974 as a switchman on the Terminal Railroad Association of St. Louis (TRRA). He was elected a local chairperson and then general chairperson (GO 919). In 2003, Wier was elected alternate International vice president-East, and was elected an International vice president in 2007.

As a TRRA general chairperson, Wier won two representation elections against the Brotherhood of Locomotive Engineers, and later successfully negotiated trip rates for yard trainmen and engineers on the TRRA.

Wier also served as a member of the Auxiliary Board of the Tri-Cities Area Division of United Way of Greater St. Louis.