- Constructed by the Treasury in 1934. Once a Post Office... Today Worthington Family Dental Tracy J. Grossman DDS 507-376-9797 Henry Morgenthau Jr. - Secretary of the Treasury James A. Farley - Postmaster General Louis A. Simon - Supervising Architect George O. Von Verta - Supervising Engineer 1934 7994 - Constructed by the Treasury in 1934 . Once a Post Office ... Today Worthington Family Dental Tracy J. Grossman DDS 507-376-9797 Henry Morgenthau Jr. - Secretary of the Treasury James A. Farley - Postmaster General Louis A. Simon - Supervising Architect George O. Von Verta - Supervising Engineer 1934 7994