Some railroads handled cream/milk cans in head end cars while others had dedicated dairy cars in the consist.
The WW&F had special dairy cars that were modified box cars. Doors were converted to plug doors, a window was added to each side, the walls were insulated and a coal stove was installed to keep the cream from freezing. In the Summer, cakes of ice were placed on top of the cans which were taken to the Turner Centre Creamery in Wiscasset. The windows were installed because a creamery agent rode in the car to load/unload cans along the way and tend the stove. The cars were in service for about 15 years. The WW&F shop built a complete replica Dairy Car (#65) three years ago. It's on display next to the creamery pier in Wiscasset, Maine.